CN114470490A

CN114470490A - External connection type kidney fistulization tube capable of being fixed and drainage containing tool

Info

Publication number: CN114470490A
Application number: CN202111556710.9A
Authority: CN
Inventors: 王卫红; 程跃
Original assignee: Ningbo First Hospital
Current assignee: Ningbo First Hospital
Priority date: 2021-07-14
Filing date: 2021-12-17
Publication date: 2022-05-13

Abstract

The invention discloses a fixable external nephrostomy tube and a drainage holding tool, wherein the fixable external nephrostomy tube is adapted to be connected to an ostomy bag, a drainage body of a guiding device of the nephrostomy tube has a drainage channel and at least two fluid inlets communicating with the drainage channel, wherein the two fluid inlets are arranged at a distance from each other, a delivery body of the nephrostomy tube has a fluid delivery channel and a fluid outlet communicating with the fluid delivery channel, the fluid delivery channel of the delivery body communicates with the drainage channel of the drainage body, a fixing body of a fixable external fixing device of the nephrostomy tube has an adhesive surface, the external body allows to be detachably mounted to the connecting device of the ostomy bag and after the external body is mounted to the connecting device, the fluid outlet of the delivery body of the guiding device is communicated with the containing space of the containing device.

Description

External connection type kidney fistulization tube capable of being fixed and drainage containing tool

Technical Field

The invention relates to the field of medical equipment, in particular to a fixable external nephrostomy tube and a drainage containing tool.

Background

The nephrostomy is suitable for the symptoms of ureteral obstruction, apocenosis, ureteral blockage caused by late bladder cancer and the like, and is suitable for the operation of removing the stone from the kidney stone. Through the nephrostomy, renal pelvis can be drained, renal function is improved, and renal pelvis and renal sthenia texture staining are reduced. Specifically, in a nephrostomy operation, an incision is made in a patient's body, a nephrostomy tube is inserted into a renal pelvis, the nephrostomy tube is fixed so as to keep the nephrostomy opening externally positioned, and then the incision of the renal pelvis is sutured. After the operation, the nephrostomy tube is connected to the fistulization bag, and urine, pus and blood in the patient are drained into the fistulization bag through the nephrostomy tube.

In the existing nephrostomy surgery, the nephrostomy tube can be held in the nephrostomy passage of the patient by suturing the incision, but a part of the tube may hang down outside the patient. In order to avoid the falling off of the nephrostomy tube caused by the shaking of the nephrostomy tube hung outside the patient body, the nephrostomy tube is usually fixed on the waist skin of the patient by using an adhesive tape, or the nephrostomy tube outside the patient body is knotted to reduce the shaking. If the adhesive tape is used for fixing, the adhesive area of the adhesive tape is small, the slight movement of a patient can cause the fistulization tube adhesive tape and the fistulization tube to be separated from the body of the patient, a plurality of adhesive tapes are needed for fixing the fistulization tube adhesive tape and the fistulization tube, the fixation is not firm enough, and the workload of doctors is increased. If only through tying fixedly, not only be difficult to avoid rocking, the department of tying of nephrostomy pipe easily disperses by oneself moreover, causes nephrostomy pipe wholly to break away from with the patient easily.

Moreover, the existing fistulization tube only depends on a drainage hole at the inner end part to guide the liquid in the body to be discharged out of the body, and the patient is easy to have the blood coagulation condition after the operation, the coagulated small blood clot easily blocks the drainage hole, if the fistulization tube is not dredged or replaced, the injury can be caused to the body of the patient, and certain hidden danger in use exists, so that medical personnel are required to frequently check the conveying condition of the fistulization tube, the condition that the fistulization tube is blocked is timely checked, and the work load of the medical personnel is increased.

Disclosure of Invention

It is an object of the present invention to provide a securable external nephrostomy tube and drainage kit, wherein the external nephrostomy tube, after being secured to a patient's body, allows for removable attachment to an ostomy bag for directing urine, pus, blood from the patient into the ostomy bag.

Another object of the present invention is to provide a fixable external nephrostomy tube and drainage kit, wherein the external nephrostomy tube itself can be directly fixed to the body of a patient without the aid of other fixing devices, and the operation is simple, which is beneficial to reduce the workload of a doctor.

Another object of the present invention is to provide a fixable external nephrostomy tube and drainage kit, wherein the external nephrostomy tube has a plurality of spaced apart fluid inlets, and the effusion in the patient can flow out of the body through different fluid inlets, which is beneficial to avoiding the occurrence of blockage.

It is another object of the present invention to provide a securable external nephrostomy tube and drainage kit, wherein the external nephrostomy tube includes an external securement device and a guide device, wherein the external securement device is capable of securing the guide device to the patient's body to prevent detachment of the guide device from the patient's body.

It is another object of the present invention to provide a securable external nephrostomy tube and drainage kit wherein the guide is movably mounted to the external attachment and the length of the guide into the patient's body is allowed to be adjusted to suit different patients, increasing the flexibility and utility of the external nephrostomy tube.

According to one aspect of the present invention there is provided a securable external renal fistula catheter adapted for connection to an ostomy bag, said securable external renal fistula catheter comprising:

a guiding device, wherein the guiding device comprises a drainage body and a delivery body, wherein the drainage body is provided with a drainage channel and at least two fluid inlets communicated with the drainage channel, two fluid inlets are arranged at intervals, the delivery body is provided with a fluid delivery channel and a fluid outlet communicated with the fluid delivery channel, the delivery body integrally extends outwards from the drainage body, and the fluid delivery channel of the delivery body is communicated with the drainage channel of the drainage body; and

an attachable attachment device, wherein said attachable attachment device comprises a fixation body and an outer body, wherein said fixation body has an adhesive surface, said delivery body of said guiding means is arranged in said fixation body, and said adhesive surface of said fixation body is oriented in a direction corresponding to the extension direction of said guiding means, wherein said outer body is arranged in said fixation body, said outer body allows for being detachably mounted to said ostomy bag, and said fluid outlet of said delivery body of said guiding means is connected to said ostomy bag after said outer body is mounted to said ostomy bag.

According to one aspect of the present invention, there is provided a drainage container comprising:

an ostomy bag, wherein said ostomy bag comprises a holding device having a socket and a holding space communicating with said socket, and a connecting device held at said socket of said holding device; and

a nephrostomy tube, wherein the nephrostomy tube comprises a guide device and an attachable fixing device, wherein the guide device comprises a drainage body and a delivery body, wherein the drainage body has a drainage channel and a fluid inlet communicating with the drainage channel, wherein the guide device comprises a drainage body and a delivery body, wherein the drainage body has a drainage channel and at least two fluid inlets communicating with the drainage channel, wherein the two fluid inlets are arranged at a distance from each other, wherein the delivery body has a fluid delivery channel and a fluid outlet communicating with the fluid delivery channel, the delivery body integrally extends outward from the drainage body, the fluid delivery channel of the delivery body communicates with the drainage channel of the drainage body, wherein the attachable fixing device comprises a fixing body and an attachable body, wherein the fixation body has an adhesive surface, the delivery body of the guiding means is arranged in the fixation body with the adhesive surface of the fixation body facing in the same direction as the extension of the guiding means, wherein the outer body is arranged in the fixation body, the outer body allowing for being detachably mounted to the connection means of the ostomy bag, and the fluid outlet of the delivery body of the guiding means is connected to the accommodation space of the accommodation means after the outer body has been mounted to the connection means.

According to a specific embodiment of the present invention, the flow guiding body comprises a tube and at least two guiding vanes, and the flow guiding body further has a drawing channel, wherein the fluid inlet and the flow guiding channel are formed on the tube, at least two guiding vanes extend from the inner wall of the tube to between the flow guiding channels at intervals, the drawing channel is formed between the inner end portions of the guiding vanes, the drawing channel is communicated with the flow guiding channels, and the fluid inlet is formed between the adjacent guiding vanes.

According to a specific embodiment of the invention, the drainage body of the guiding device has a traction opening, wherein the traction opening is communicated with the traction channel of the drainage body, the drainage body is switchable between a curved state and a straightened state, wherein the drainage body in the curved state is rolled inwards with the traction opening facing towards the inner side of the drainage body, and the extension direction of the drainage body in the straightened state and the extension direction of the delivery body are kept the same.

According to a particular embodiment of the invention, the drainage body of the guiding device has a traction opening, wherein the traction opening is connected to the traction channel of the drainage body, wherein the extension direction of the drainage portion of the drainage body of the guiding device always coincides with the extension direction of the delivery body.

According to a specific embodiment of the present invention, the fixing body includes a hard holding layer having a holding surface and a holding surface opposite to the holding surface, and a soft adhesive layer having the adhesive surface and a bonding surface opposite to the adhesive surface, wherein the bonding surface of the soft adhesive layer is bonded to the holding surface of the soft adhesive layer, and the hardness of the hard holding layer is greater than that of the soft adhesive layer.

According to a specific embodiment of the present invention, the outer body comprises a bearing portion and an outer portion, the connection device comprises a socket retaining portion and a connection portion, wherein the outer portion extends outwardly from the bearing portion, the bearing portion is disposed on the fixing body, the connection portion extends outwardly from the socket retaining portion, the connection portion of the connection device is detachably mounted to the outer portion of the outer body, the bearing portion has a hardness greater than that of the hard retaining layer, and the outer portion allows for detachable connection to the ostomy bag.

According to a specific embodiment of the present invention, the external connection portion of the external connection body includes an extension arm and a position-limiting portion, wherein the extension arm longitudinally extends outward from the carrying portion, the position-limiting portion transversely extends outward from the extension arm, and a position-limiting groove is formed between the extension arm and the position-limiting arm, the connection portion of the connection device is a position-limiting protrusion extending outward from the interface maintaining portion, and the position-limiting protrusion can be detachably inserted into the position-limiting groove of the external connection portion.

According to a specific embodiment of the present invention, the external connecting portion of the external connecting body is a limiting protrusion extending outward from the receiving portion, and the connecting portion of the connecting device includes an extending arm extending longitudinally outward from the interface maintaining portion and an abutting portion extending transversely outward from the extending arm and forming a retaining groove among the interface maintaining portion, the extending arm and the abutting portion, and the limiting protrusion can be detachably inserted into the retaining groove.

According to a specific embodiment of the present invention, the external connection portion of the external connection body is detachably mounted to the connection portion of the connection device by means of a screw connection.

According to a specific embodiment of the present invention, the external portion of the external body comprises at least two fastening claws arranged at intervals, wherein the fastening claws comprise an elastic holding member, a fastening arm and an abutting projection, wherein the elastic holding member flexibly extends outward from the bearing portion, the fastening arm vertically extends outward from the elastic holding member, the abutting projection obliquely extends inward from the fastening arm, and a fastening groove is formed between the elastic holding member, the fastening arm and the abutting projection, the external portion of the external body comprises an extending arm and an abutting portion, wherein the extending arm longitudinally extends outward from the socket holding portion, the abutting portion transversely extends outward from the extending arm, and a holding groove is formed between the socket holding portion, the extending arm and the abutting portion, the fastening claw has elasticity, at least two the fastening claw butt is protruding to be laminated in external main part the spacing portion, the butt is protruding to get into the retaining groove, just connecting device butt portion gets into the fastening claw during the fastening groove, the fistulization bag connecting device be detained in the nephrostomy tube can external fixing device.

According to a specific embodiment of the present invention, the connecting portion of the connecting device includes at least two spaced-apart fastening claws, wherein the fastening claws include an elastic holding portion, a fastening arm and an abutting projection, wherein the elastic holding portion flexibly extends outward from the socket holding portion, the fastening arm extends outward from the elastic holding portion, the abutting projection extends obliquely inward from the fastening arm, and a fastening groove is formed between the elastic holding portion, the fastening arm and the abutting projection, the external portion of the external body includes an extension arm and a stopper portion, wherein the extension arm longitudinally extends outward from the carrying portion, the stopper portion transversely extends outward from the extension arm, and a stopper groove is formed between the extension arm and the stopper arm, the fastening claw has elasticity, at least two the lock joint claw the butt is protruding laminate in external main part the spacing portion, the butt is protruding to get into the spacing groove, just external main part the spacing portion gets into the lock joint claw during the lock joint groove, the fistulization bag connecting device be detained in but external fixing device of nephrostomy tube.

According to a specific embodiment of the present invention, the external fixing device further comprises a limiting body, and said fixing body having a holding channel, said delivery body of said guide device being allowed to be movably mounted to said holding channel, wherein the limiting main body is arranged on the fixing main body in a manner of being communicated with the fixing main body, said guide means being movably retained in said retaining channel, said check body being operatively mounted to said guide means, wherein the limiting body can be switched between an active state and a locking state, when the limiting body is in the active state, the guiding device and the fixing body can be relatively displaced, when the position limiting body is in the locking state, the relative position of the guide device and the fixing body is fixed.

According to a specific embodiment of the present invention, the positioning main body comprises a fitting member, an elastic member and an actuating member, wherein the fitting member has a receiving space, the elastic member has a deformation passage, the actuating member has a moving passage, the elastic member is mounted to the fitting member in such a manner that the deformation passage communicates with the receiving space, the actuating member is movably mounted to the fitting member in such a manner that the moving passage communicates with the deformation passage of the elastic member, and the elastic member is held between the fitting member and the actuating member.

According to a specific embodiment of the present invention, the driving member includes a holding portion, a movable connecting portion extending downward from the holding portion at an interval, and a deformation driving portion, wherein the deformation driving portion is located inside the movable connecting portion, the movable passage is formed in the deformation driving portion, the assembly includes a mounting portion and an accommodating portion, the accommodating portion extends upward from the mounting portion, the accommodating space penetrates through the accommodating portion and the mounting portion, the mounting portion is disposed on the fixing body, the movable connecting portion of the driving member is mounted in the accommodating portion of the assembly in a manner that the deformation driving portion is held in the accommodating space so as to be movable up and down, and the elastic member is held between the accommodating portion and the deformation driving portion.

According to a specific embodiment of the present invention, the soft adhesive layer and the hard holding layer of the fixing body are of an integral structure.

According to a specific embodiment of the present invention, the soft adhesive layer and the hard holding layer of the fixing body are of a split structure.

According to a particular embodiment of the invention, the width of the middle part of the fixing body is smaller than the width of the two end parts of the fixing body.

According to a specific embodiment of the present invention, the fixing body further comprises at least one covering layer, wherein the covering layer is detachably covered on the adhesive layer of the soft adhesive layer.

Drawings

FIG. 1 is an exploded view of a drain containing tool according to a preferred embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a nephrostomy tube of the drainage pack according to the above preferred embodiment of the present invention.

Fig. 3A is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the invention.

Fig. 3B is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 4 is a schematic view of the application of the drainage container according to the above preferred embodiment of the present invention.

Fig. 5 is a schematic sectional view showing a partial structure of the renal fistula according to another preferred embodiment of the present invention.

Fig. 6A is a schematic structural view of the kidney fistula according to another preferred embodiment of the present invention.

Fig. 6B is a schematic sectional view of the nephrostomy tube according to the above preferred embodiment of the present invention.

Fig. 7A is a schematic cross-sectional view of a portion of the drain containing tool according to another preferred embodiment of the invention.

Fig. 7B is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 8A is a schematic cross-sectional view of a portion of the drain containing tool according to another preferred embodiment of the invention.

Fig. 8B is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 9 is an exploded view of the drain containing tool according to another preferred embodiment of the present invention.

Fig. 10 is an exploded view of the drain containing tool according to another preferred embodiment of the present invention.

Fig. 11 is an exploded view of the nephrostomy tube of the drainage pack according to the above preferred embodiment of the present invention.

Fig. 12A is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 12B is a schematic sectional view showing a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 13A is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 13B is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 14 is a sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 15A is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 15B is a schematic sectional view of a part of the structure of the drainage container according to the above preferred embodiment of the present invention.

Fig. 16 is a perspective view of a fixed nephrostomy tube device with an outer load bearing member in accordance with a preferred embodiment of the present invention.

Fig. 17 is a schematic cross-sectional view a-a according to the position shown in fig. 16.

Fig. 18 is a schematic cross-sectional view B-B according to the position shown in fig. 16.

Fig. 19A is a schematic view of a connection aid of a connection unit of the fixed nephrostomy tube device with outer load bearing member in an open state according to the above preferred embodiment of the present invention.

Fig. 19B is a schematic view from another perspective of the connection aid of the connection unit of the fixed nephrostomy device with an outer load bearing member according to the above preferred embodiment of the invention in an open state.

Fig. 20A is a schematic view of the connection aid of the connection unit of the fixed nephrostomy tube device with outer load bearing member in a closed state according to the above preferred embodiment of the invention.

Fig. 20B is a schematic view from another perspective of the connection aid of the connection unit of the fixed nephrostomy device with an outer load bearing member in a closed state according to the above preferred embodiment of the invention.

Fig. 21A is a cross-sectional view of an outer carrier of the fixed nephrostomy tube device with an outer carrier mounted to a fixed unit in accordance with the above preferred embodiment of the present invention.

Fig. 21B is a cross-sectional view of the outer carrier of the fixed nephrostomy tube device with an outer carrier mounted to the fixing unit by the connection unit according to the above preferred embodiment of the present invention.

Figure 22 is a schematic view of the securing unit of the fixed nephrostomy device with an outer load bearing member according to the above preferred embodiment of the invention.

Fig. 23 is a schematic view of an application of the fixed nephrostomy tube device with an outer load bearing member in accordance with the above preferred embodiment of the present invention.

Fig. 24 is an installation schematic of the fixed nephrostomy tube device with an outer load bearing member according to the above preferred embodiment of the present invention.

Fig. 25 is a perspective view of the fixed nephrostomy tube device with an outer load bearing member in accordance with another preferred embodiment of the present invention.

Fig. 26A is a schematic cross-sectional view of an outer carrier of the fixed nephrostomy tube device with an outer carrier mounted to a fixed unit in accordance with the above preferred embodiment of the present invention.

Fig. 26B is a cross-sectional view of the outer carrier of the fixed nephrostomy tube device with an outer carrier mounted to the fixing unit by the connection unit according to the above preferred embodiment of the present invention.

Figure 27 is a cross-sectional view of the fixed nephrostomy device with an outer load bearing member in accordance with another preferred embodiment of the invention.

Fig. 28 is a schematic cross-sectional view of the fixed nephrostomy tube device with an outer load bearing member in accordance with another preferred embodiment of the invention.

Fig. 29 is a partially cut-away schematic view of the fixed nephrostomy tube device with an outer load bearing member according to the above preferred embodiment of the invention.

Fig. 30A is a partially sectional view of the fixed type nephrostomy tube device with an external load bearing member according to the above preferred embodiment of the present invention, mainly illustrating the state of the fixing unit when a nephrostomy tube is not installed.

Fig. 30B is a partially sectional view of the fixed type nephrostomy tube device with external load bearing members according to the above preferred embodiment of the present invention, mainly illustrating the state of the fixing unit when a nephrostomy tube is installed.

Fig. 31A is a schematic, partially cross-sectional view of a stationary nephrostomy tube device with an outer load bearing member in accordance with another preferred embodiment of the invention in one state of use.

Fig. 31B is a schematic, partially cross-sectional view of the fixed nephrostomy tube device with an outer load bearing member in another state of use according to the above preferred embodiment of the invention.

Figure 32A is a partially cross-sectional schematic view of a stationary nephrostomy device with an outer load bearing member in accordance with another preferred embodiment of the invention in one state of use.

Fig. 32B is a schematic, partially cross-sectional view of the fixed nephrostomy tube device with an outer load bearing member in another state of use according to the above preferred embodiment of the invention.

Fig. 33 is a perspective view of the fixed nephrostomy tube device with an outer load bearing member in accordance with another preferred embodiment of the present invention.

Fig. 34 is a schematic partial cross-sectional view of the fixed nephrostomy tube device with an outer load bearing member in accordance with the above preferred embodiment of the invention, taken along the line C-C in fig. 33.

Fig. 35 is a schematic cross-sectional view of the fixed nephrostomy tube device with an outer load bearing member in accordance with another preferred embodiment of the invention.

Fig. 36 is a schematic cross-sectional view of the fixed nephrostomy tube device with an outer load bearing member in accordance with another preferred embodiment of the invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 15B of the specification, a drainage and containment tool 1000 according to some preferred embodiments of the present invention will be described in the following description, wherein the drainage and containment tool 1000 comprises a fixable, external nephrostomy tube 100 and an ostomy bag 200, wherein the nephrostomy tube 100 is fixable to the body of a patient, the ostomy bag 200 is allowed to be detachably mounted to the nephrostomy tube 100, and the nephrostomy tube 100 and the ostomy bag 200 are in communication with each other after the ostomy bag 200 is mounted to the nephrostomy tube 100, the nephrostomy tube 100 being capable of guiding a liquid in the patient into the ostomy bag 200.

More specifically, the nephrostomy tube 100 comprises a guide device 110 and an external fixation device 120, wherein the external fixation device 120 comprises a fixation body 121 and an external body 122, wherein the fixation body 121 has an adhesive surface 12101 and a retaining surface 12102 opposite the adhesive surface 12101, and the ostomy bag 200 comprises a containing device 210 and a connecting device 220, wherein the containing body 210 has a receiving opening 211 and a containing space 212 communicating with the receiving opening 211. The fixing body 121 is provided to the guide device 110 such that the direction of the adhesive surface 12101 is identical to the extending direction of the guide device 110, and after the inner end of the guide device 110 enters the stoma passage of the patient, the renal fistula 100 can be fixed to the body of the patient by the adhesive surface 12101 of the fixing body 121 being adhered to the body of the patient. The nephrostomy tube 100 is provided with a positioning wire to enable an operator to observe the position and depth of entry of the nephrostomy tube 100 by means of a detection device after the nephrostomy tube 100 has been inserted into the patient's body.

The outer body 122 of the nephrostomy tube 100 is arranged at the holding surface 12102 of the fixing body 121, the connecting means 220 of the ostomy bag 200 is detachably mounted to the outer body 122 of the circumscribed fixing means 120 of the nephrostomy tube 100, and the ostomy bag 200 is fixed to the guiding means 110 of the nephrostomy tube 100 in such a way that the receiving space 212 is in communication with the nephrostomy tube 100. The guiding means 110 of the kidney ostomy tube 100 guides the liquid in the patient's body into the ostomy bag 200. The area of the adhesive surface 12101 of the fixing body 121 is much larger than the cross-sectional area of the guiding means 110, increasing the contact area and adhesive area between the nephrostomy tube 100 and the patient's body, facilitating the firm fixation of the nephrostomy tube 100 to the patient's body and being able to bear the weight of the ostomy bag 200 and the contents therein.

Referring to fig. 1, 2, 6A, 6B, 9-11, in some embodiments of the invention, the guiding device 110 of the nephrostomy tube 100 includes a drainage body 111 and a delivery body 112, wherein the drainage body 111 has a drainage channel 1101 and a plurality of elongated fluid inlets 1102 communicating with the drainage channel 1101, and wherein the delivery body 112 has a fluid delivery channel 1121 and a fluid outlet 1122 communicating with the fluid delivery channel 1121. The delivery body 112 integrally extends outward from the drainage body 111, and the fluid delivery channel 1121 of the delivery body 112 communicates with the drainage channel 1101 of the drainage body 111. The fixing body 129 is provided to the conveying body 112 of the guide device 110.

Referring to fig. 1, 2, 6A, 6B, 9-11, the drainage body 111 of the guide device 110 of the nephrostomy tube 100 comprises a tube 1111 and at least two guide vanes 1112, wherein the fluid inlet 1102 and the drainage channel 1101 are formed in the tube 1111 and the delivery body 112 is connected to the tube 1111 of the drainage body 111. At least two guide vanes 1112 extend from the inner wall of the pipe 1111 to the drainage channel 1101 at intervals, and a traction channel 1103 is formed between the inner ends of all the guide vanes 1112. The drawing channel 1103 is communicated with the flow guide channel 1101, and the fluid inlet 1102 is formed between the adjacent guide vanes 1112, so that the flow of the liquid is guided by the guide vanes 1112, and the occurrence of blockage is avoided.

Preferably, the guide vanes 1112 are uniformly spaced apart from the pipe 1111. Alternatively, the spacing between adjacent guide vanes 1112 may be different. Preferably, adjacent fluid inlets 1102 are spaced a uniform distance apart. Optionally, adjacent fluid inlets 1102 are spaced apart by different distances. Preferably, all of the fluid inlets 1102 are uniform in width. Optionally, at least two of the fluid inlets 1102 have different widths.

Preferably, the fluid inlet 1102 extends to the traction opening 1104. Optionally, the fluid inlet 1102 and the traction opening 1104 are spaced apart from each other. Preferably, the plurality of fluid inlets 1102 extend in a uniform length. Optionally, the plurality of fluid inlets 1102 do not extend uniformly in length. Alternatively, the length of the fluid inlet 1102 formed at the outer side of the drainage body 111 is greater than the length of the fluid inlet 1102 formed at the inner side of the drainage body 111, so that, after the drainage body 111 is bent toward the inner side of the drainage body 111 with the traction opening 1103, the liquid in the patient can flow out through the fluid inlet 1102 at the outer side of the drainage body 111, so that the drainage body 111 in the bent state can still smoothly guide the liquid to flow out.

It should be noted that the specific number and embodiment of the guide vanes 1112 and the fluid inlets 1102 are not limited, and the number of the guide vanes 1112 and the fluid inlets 1102 may be the same or different. The specific numbers and embodiments of the guide vanes 1112 and the fluid inlets 1102 described herein and shown in the drawings are exemplary only and are not intended as limitations on the content or scope of the nephrostomy tube 100 of the present invention.

Further, the drainage body 111 of the drainage body 110 has a traction opening 1104, wherein the traction opening 1104 is communicated with the drainage channel 1101 of the drainage body 111, and the traction opening 1104 is formed at an inner end of the drainage body 110. In use, the nephrostomy tube 100 enters the fistulization channel of the patient with the drainage body 111 facing the patient, and a doctor can insert a linear traction member into the fluid transport channel 1121 of the transport body 112 from the fluid outlet 1122 of the nephrostomy tube 100, pass through the drainage channel 1101 and the traction channel 1103 of the drainage body 111, and pass out from the fluid inlet 1102 to reach the surgical site for subsequent surgical operations.

Referring to fig. 2, 9 to 11, in some specific embodiments of the present invention, the drainage body 111 of the guiding device 110 can be switched between a bent state and a straightened state, wherein the drainage body 111 is in the bent state without being subjected to external force, the drainage body 111 in the bent state extends outwards from the delivery body 112 in a bent manner, and the drainage body 111 is rolled up in such a manner that the traction opening 1104 approaches towards the inner side wall. Further, the drainage body 111 of the drainage body 110 has elasticity, and the traction member straightly extending into the nephrostomy tube 100 pulls the drainage body 111 in the curved state toward straight extension after passing through the drainage body 111. The extension direction of the drainage body 111 and the extension direction of the delivery body 112 remain the same, whereby the drainage body 111 of the guide device 110 of the nephrostomy tube 100 is switched from the curved state to the straightened state.

After the traction member leaves the nephrostomy tube 100, the traction force applied to the drainage body 111 of the guide device 110 from the traction member is cancelled, the drainage body 111 of the guide device 110 releases elastic potential energy and returns to the initial state, that is, after the traction member is taken out, the drainage body 111 returns from the straight state to the bent state and is kept in the patient body in a manner of keeping the bent state, and the end part of the drainage body 111 of the guide device 110 is rolled up, so that the adverse stimulation caused by touching the organ in the patient body is avoided.

Referring to fig. 6A and 6B, in some specific embodiments of the invention, the drainage body 111 of the guide 110 of the nephrostomy tube 100 extends straight outwards from the delivery body 112, i.e. without being drawn by the drawing member, the drainage body 111 of the guide 110 of the nephrostomy tube 100 is always kept straight, and the directions of extension of the drainage body 1111 and the delivery body 112 of the drainage body 110 are always kept identical. It is to be noted that the specific embodiments of the guiding means 110 of the nephrostomy tube 100 illustrated in the figures and the text of the description are given as examples only and are not intended to limit the content or scope of the nephrostomy tube 100 according to the invention.

In a specific embodiment of the present invention, the external fixing device 120 of the nephrostomy tube 100 the fixing body 121 comprises a hard holding layer 1211 and a soft adhesive layer 1212, wherein the hard holding layer 1211 has the holding surface 12102 and a holding surface 12104 opposite to the holding surface 12102. The adhesive surface 12101 of the fixing body 121 is formed on the soft adhesive layer 1212, and the soft adhesive layer 1212 has a coupling surface 12105 facing the adhesive surface 12101. The soft adhesive surface 22 is provided inside the hard holding layer 1211 so that the bonding surface 12105 is bonded to the holding surface 12104 of the hard holding layer 1211. The outer body 122 is provided on the holding surface 12102 of the hard holding layer 1211, and for example, but not limited thereto, the hard holding layer 1211 and the soft adhesive layer 1212 are integrally bonded by a hot pressing process, an adhesive process, or the like.

Preferably, the hard retaining layer 1211 and the soft adhesive layer 1212 are formed as a single body, for example, but not limited to, the hard retaining layer 1211 and the soft adhesive layer 1212 are integrated by a hot pressing process, so that the structure is firm, the separation is not easy, and the bearing during the subsequent use process is convenient.

Optionally, the hard retention layer 1211 and the soft adhesive layer 1212 are of a split structure. Specifically, the bonding surface 12105 and the adhesive surface 12101 of the soft adhesive layer 1212 each have tackiness, and before use, the soft adhesive layer 1212 and the hard holding layer 1211 are separated from each other and are separated from each other, and when used, the soft adhesive layer 1212 is attached to the holding surface 12104 of the hard holding layer 1211 such that the bonding surface 12105 faces the hard holding layer 1211, and the hard holding layer 1211 and the soft adhesive layer 1212 are fixedly connected to each other.

The hardness that the layer 1211 is kept to the stereoplasm is greater than the hardness that the layer 1212 is pasted to the soft, fixed main part 121 with the layer 1212 is pasted to the soft mode of pasting surface 12101 towards patient's health and is pasted in patient's health, with patient's health direct contact the layer 1212 material is soft for fixed main part 121 when taking place the friction with patient's health, the layer 1212 scratch patient's human body is pasted to the soft. For example, but not limited to, the soft adhesive layer 1212 is made of a material such as silica gel or rubber. The hard holding layer 1211 is made of a hard material, and not only maintains the shape of the soft adhesive layer 1212 to facilitate direct adhesion, but also allows the fixing body 121 of the fistula 100 to stably mount the ostomy bag 200 for receiving the liquid discharged from the patient's body in the subsequent process.

Preferably, the hard holding layer 1211 has a guiding channel, the soft adhesive layer 1212 has a flow channel, and the flow channel of the soft adhesive layer 1212 is communicated with the guiding channel of the hard holding layer 1211, so as to form the air flow channel 12103 of the fixing body 121. The air intake device 130 is provided on the holding surface 12102 of the hard holding layer 1211 such that the air intake passage 1301 is communicated with the guide passage of the hard holding layer 1211 of the fixing body 121.

Fixed main part 121 further includes an at least overburden 1213, wherein overburden 1213 is covered with tearing the layer 1212 is pasted to soft the face 12101 of pasting, the overburden 1213 protection the layer 1212 is pasted to soft the face 12101 of pasting avoids paste face 12101's viscidity reduces and influence the fastness in the follow-up use. In use, the covering layer 1213 and the adhesive surface 12101 of the soft adhesive layer 1212 are separated by tearing to expose the adhesive surface 12101, the nephrostomy tube 100 is inserted into the body of the patient with the adhesive surface 12101 facing the body of the patient, and the nephrostomy tube 100 is stably held in the fistulation passage of the body of the patient after the adhesive surface 12101 of the fixing body 121 is adhered to the body of the patient.

In one particular embodiment of the invention, the cover layer 1213 is a two-piece structure. Specifically, the cover layer 1213 includes two cover sheets 12131, wherein the cover sheet 12131 has a notch, the two cover sheets 12131 are attached to the adhesive surface 12101 of the flexible adhesive layer 1212 in such a manner that the notch corresponds to the conveying body 112 of the guiding device 110, the two cover sheets 12131 are respectively retained on both sides of the conveying body 112, and the two cover sheets 12131 completely cover the adhesive surface 12101 of the flexible adhesive layer 1212, thereby preventing the adhesive surface 12101 from being contaminated. Preferably, the two covering sheets 12131 are held on both sides of the conveying body 112 completely independently. Alternatively, two of the covering sheets 12131 are held in a partially attached manner on both sides of the conveying main body 112. For example, but not limited to, the cover sheet 12131 is made of plastic material, and the cover sheet 12131 has a smooth surface and is easy to tear.

Specifically, after the guide device 110 of the nephrostomy tube 100 is inserted into the patient's body, the two covering sheets 12131 are respectively pulled, the covering sheet 12131 and the adhesive surface 12101 of the soft adhesive layer 1212 are separated, the adhesive surface 12101 is exposed, and the fixing body 121 can be fixed to the waist of the patient.

Optionally, the cover layer 1213 is a one-piece structure, i.e., the two cover sheets 12131 are integrally formed. In use, the covering sheet 12131 is first separated from the adhesive surface 12101 of the soft adhesive layer 1212 so that the adhesive surface 12101 is exposed, and then the guiding device 110 of the nephrostomy tube 100 is held in the patient's body, and the fixing body 121 is fixed to the waist of the patient by the adhesive surface 12101 adhering to the waist of the patient. It will be understood by those skilled in the art that the particular embodiment of the covering layer 1213 is provided by way of example only and is not intended to limit the scope and content of the securable fistula tract 100 of the present invention.

Preferably, the width of the middle of the fixing body 121 is smaller than the width of both end portions of the fixing body 121, and the guide 110 is disposed at the middle of the fixing body 121. The shape of the fixing body 121 is adapted to the curvature of the waist of the patient, which is beneficial for the adhesive surface 12101 of the fixing body 121 to be firmly adhered to the body of the patient. And, when separating nephrostomy tube 100 and patient, can reduce to patient's fistulization position tear the effort, alleviate painful sense.

Alternatively, the fixing body 121 is implemented in a regular pattern of a circle, a rectangle, a trapezoid, a square, a diamond, a ring, or other irregular pattern, and the specific embodiment of the fixing body 121 is merely an example and is not intended to limit the content and scope of the nephrostomy tube 100 according to the present invention.

In some embodiments of the present invention, the external body 122 of the circumscribed holding device 120 of the nephrostomy tube 100 includes a carrier portion 1221 and an external portion 1222, wherein the external portion 1222 extends integrally and outwardly from the carrier portion 1221, and the carrier portion 1221 is secured to the holding body 121. The coupling device 220 of the ostomy bag 200 further comprises an annular bellmouth maintaining part 221 and a coupling part 222, wherein the annular bellmouth maintaining part 221 is fixed to the bellmouth 211 of the holding device 210 and the coupling part 222 extends outwardly from the bellmouth maintaining part 221. The coupling portion 222 of the coupling device 220 is detachably mounted to the extension portion 1222 of the extension body 122 such that the ostomy bag 200 is detachably connected to the nephrostomy tube 100 and the fluid transport channel 1121 of the transport body 112 of the nephrostomy bag 100 is in communication with the containing space 212 of the containing means 210 of the ostomy bag 200.

Preferably, the bearing portion 1221 of the outer body 122 is of an annular structure, the bearing portion 1221 surrounds the fluid outlet 1122 of the nephrostomy tube 100, and the rigidity of the receiving portion 1221 of the outer body 122 is greater than the rigidity of the rigid retaining layer 1211 of the fixing body 121, so as to bear the weight of the liquid contained in the ostomy bag 200 on the one hand, and disperse the force from the ostomy bag 200 on the other hand, thereby reducing the pulling of the ostomy bag 200 and the contained liquid on the wound of the patient, and facilitating pain relief. For example, but not limited to, the bearing portion 1221 of the outer body 122 is fixed to the fixing body 121 by heat pressing or adhesion. For example, but not limited to, the bearing portion 1221 of the circumscribing body 122 is a circular ring, a square ring, a triangular ring, an elliptical ring, and the like.

Referring to fig. 3A and 3B, in an embodiment of the invention, the external portion 1222 of the external main body 122 includes an extension arm 12221 and a limiting portion 12222, the extension arm 12221 extends perpendicularly outward from the bearing portion 1221, the limiting portion 12222 extends perpendicularly outward from the extension arm 12221, and a limiting groove 1220 is formed between the extension arm 12221 and the limiting portion 12222. The coupling portion 222 of the coupling device 220 is a stopper protrusion extending outward from the socket maintaining portion 221, and the stopper protrusion is detachably fitted into the stopper groove 1220 of the male portion 1222, so that the ostomy bag 200 is stably held outside the fixing body 121.

Referring to fig. 7A and 7B, in a specific embodiment of the present invention, the external connecting portion 1222 of the external main body 122 is the limiting protrusion extending outward from the bearing portion 1221, and the connecting portion 222 of the connecting device 220 includes an external extending arm 2221 and an abutting portion 2222, wherein the external extending arm 2221 extends longitudinally outward from the socket maintaining portion 221, and the abutting portion 2222 extends transversely outward from the external extending arm 2221, and a retaining groove 2220 is formed between the socket maintaining portion 221, the external extending arm 2221 and the abutting portion 2222. The receiving portion 1221 of the circumscribing body 122 can be detachably fitted into the holding groove 2220 so that the ostomy bag 200 is stably held outside the fixing body 121.

Referring to fig. 8A and 8B, in a specific embodiment of the present invention, the external connector 1222 of the external body 122 is detachably connected to the connecting portion 222 by a screw connection. For example, the inner wall of the outer body 122 may be provided with an internal thread, the connecting portion 222 may be provided with an external thread adapted to the internal thread, and the connecting means 220 of the ostomy bag 200 may be detachably mounted to the outer body 122 of the outer fixing means 120 by connecting the external thread of the connecting portion 222 to the internal thread.

Referring to fig. 9, in an embodiment of the invention, the coupling portion 222 of the coupling device 220 of the ostomy bag 200 comprises at least two symmetrically disposed buckling claws 2223, wherein the buckling claws 2223 comprise a resilient holding portion 22231, a buckling arm 22232 and an abutment projection 22233, wherein the resilient holding portion 22231 flexibly extends outwardly from the mouthpiece holding portion 221, the buckling arm 22232 extends perpendicularly outwardly from the resilient holding portion 22231, and the abutment projection 22233 obliquely extends inwardly from the buckling arm 22232, and forms a buckling groove 22230 between the resilient holding portion 22231, the buckling arm 22232 and the abutment projection 22233.

The elastic holding portions 22231 of at least two of the hooking claws 2223 can be moved inward in a deformed manner to be close to the limiting portion 12222 of the external main body 122 of the external fixing device 120. When the two engaging protrusions 22233 of the two engaging claws 2223 are fitted to the stopper 12222 of the outer body 122, and the engaging protrusions 22233 enter the stopper 12222 and the stopper grooves 12220 between the two extending arms 12221, and the stopper 12222 of the outer body 122 enters the fastening grooves 22230 of the engaging claws 2223, the connecting device 220 of the ostomy bag 200 is fastened to the external fixing device 120 of the nephrostomy tube 100. After the resilient holding portions 22231 of the hooking pawls 2223 are displaced outwardly in a deformed manner and the abutment protrusions 22233 are disengaged from the retaining grooves 1220, the stopper portion 1222 of the outer body 122 is disengaged from the hooking grooves 22230, and the coupling means 220 of the ostomy bag 200 is disengaged from the circumscribed about the securing means 120 of the nephrostomy tube 100.

Preferably, the hooking pawls 2223 are implemented in four, and four hooking pawls 2223 are symmetrically disposed on the socket maintaining portion 221. Alternatively, the hooking pawls 2233 are implemented in three.

It should be noted that the specific embodiments of the external body 122 and the connection device 220 of the external fixing device 120 are only examples, and the specific structures of the external portion 1222 of the external body 122 and the connection portion 222 of the connection device 220 may be interchanged. For example, the external portion 1222 of the external body may be implemented to include at least two of the snap claws 2223, wherein the snap claws 2233 extend outward from the carrier 1221. The embodiments shown in the text and drawings should not be construed as limiting the scope and content of the nephrostomy tube 100 and the drainage kit 1000 of the present invention.

In some embodiments of the present invention, the external fixing device 120 and the guiding device 110 of the nephrostomy tube 100 are of an integral structure, i.e. the fixing body 121 of the external fixing device 120 and the delivery body 112 of the guiding device 110 are fixedly connected, and the distance from the fluid inlet 1102 of the drainage body 111 of the guiding device 110 to the adhesive surface 12101 of the fixing body 121 is fixed and is not allowed to be adjusted.

In a particular embodiment of the invention, the fixing body 121 is integrally formed to the delivery body 112 of the drainage body 110. For example, the delivery body 112 of the drainage body 110 is held in one mold for forming the soft adhesive layer 1212 of the fixing device 120, the soft adhesive layer 1212 of the fixing body 121 is integrally formed, and then the drainage body 120 with the soft adhesive layer 1212 is held in another mold for forming the hard holding layer 1211, and the hard holding layer 1211 of the fixing body 121 is integrally formed on the soft adhesive layer 1212.

Referring to fig. 5, in another specific embodiment of the present invention, the guiding device 110 further includes a combining portion 114, wherein the combining portion 114 extends outward from the outer circumference of the fluid outlet 1122 of the conveying body 112, and the combining portion 114 is disposed on the fixing body 121, so that the guiding device 110 is fixed to the fixing body 121.

Alternatively, the coupling portion 114 of the guide device 110 may be coupled to the fixing body 121 so as to be attached to the coupling surface 12105 or the adhesive surface 12101 of the soft adhesive layer 1212. For example, the soft adhesive layer 1212 has a through hole, the coupling portion 114 of the guiding device 110 is bonded to the coupling surface 12105 of the soft adhesive layer 1212 so that the conveying body 112 is held in the through hole, the soft adhesive layer 1212 is bonded to the coupling portion 114 of the guiding device 110 by means of adhesion or heat pressing, the adhesive surface 12101 faces the guiding device 110, and the hard holding layer 1211 is bonded to the soft adhesive layer 1212 by means of adhesion or heat pressing.

Alternatively, the coupling portion 114 of the guiding device 110 is coupled to the fixing body 121 so as to be attached to the holding surface 12102 or the holding surface 12104 of the hard holding layer 1211, and the guiding passage of the hard holding layer 1211 is communicated with the airflow passage 1401 of the coupling portion 114. The soft adhesive layer 1212 is bonded to the retaining surface 12104 of the hard retaining layer 1211 by a process such as gluing or heat pressing.

Alternatively, the coupling portion 114 of the guide device 110 may be held between the holding surface 12104 of the hard holding layer 1211 and the coupling surface 12105 of the soft adhesive layer 1212 at an interval. For example, after the soft adhesive layer 1212 and the hard holding layer 1211 are bonded by an adhesive or a thermal pressing process, an assembly space communicating with the through hole of the soft adhesive layer 1212 is formed between the soft adhesive layer 1212 and the hard holding layer 1211, the guide device 110 is held by one side of the fixing body 121 such that the bonding portion 114 is held in the assembly space, glue or another adhesive material in a molten state is poured into the assembly space, and after the adhesive material is solidified, the adhesive material is filled between the bonding surface 12105 of the soft adhesive layer 1212 and the bonding portion 114 and between the holding surface 12104 of the hard holding layer 1211 and the bonding portion 114.

In an embodiment of the invention, the fixing body 121 further includes an extension portion 1214, wherein the extension portion 1214 has an extension passage 12141, wherein the extension portion 1214 extends outward from the retaining surface 12102 of the fixing body 121, the fixing body 121 is disposed on the conveying body 112 in such a manner that the extension passage 12141 corresponds to the fluid outlet 1122 of the conveying body 112 of the guiding device 110, and the extension passage 12141 of the extension portion 1214 of the fixing body 121 is communicated with the fluid outlet 1122 of the conveying body 112. After the ostomy bag 200 is mounted to the circumscribing body 122 of the circumscribed securing device 120 of the nephrostomy tube 100, the extension 1214 of the securing body 121 of the nephrostomy tube 100 can be inserted into the receiving space 212 from the socket 211 of the receiving body 210.

It is worth mentioning that in the embodiment where the guiding device 110 and the external fixation device 120 of the nephrostomy tube 100 are of an integrated structure, medical personnel can observe the healing status of the surgical site through the fluid outlet 1122 when there is no need to drain the fluid with the nephrostomy tube 100. The nephrostomy tube 100 is additionally reserved in the external part of the patient and is shorter, when a doctor observes the recovery condition of the operation position of the patient through the channel of the nephrostomy tube 100, the nephrostomy tube 100 has smaller influence on the visual field of the doctor, and the doctor can clearly observe the recovery condition of the operation position of the patient.

Preferably, referring to fig. 5, the extension portion 1214 integrally extends outward from the hard holding layer 1211, that is, the holding surface 12102 of the hard holding layer 1211 extends outward to form the extension portion 1214.

Alternatively, the delivery body 112 of the guiding device 110 is fixed to the fixed body 121 in such a way that the fluid outlet 1122 is located outside the holding surface 12102 of the fixed body 121, i.e. the delivery body 112 of the guiding device 110 protrudes beyond the outer side surface 12102 of the fixed body 121. The portion of the conveying body 112 of the guiding device 110 that is outside the holding surface 12102 of the fixing body 121 forms the extension 1214. In particular, the fixed body 121 has a holding channel 12106, wherein the delivery body 112 of the guiding device 110 is fixed to the holding channel 12106 in such a way that the fluid outlet 1122 is located outside the holding surface 12102 of the fixed body 121. In this way, the delivery body 112 of the guiding means 110 of the nephrostomy tube 100 can be inserted into the receiving space 212 from the receiving opening 211 of the receiving body 210 of the ostomy bag 200 after the ostomy bag 200 has been mounted to the circumscribing body 122 of the nephrostomy tube 100. For example, the outer wall of the delivery body 112 of the guiding device 110 is firmly glued to the inner wall of the fixing body 121 delimiting the retaining channel 12106 by means of a gluing process.

Referring to fig. 10 and 11, in other embodiments of the present invention, the guiding device 110 and the circumscribed securing device 120 of the nephrostomy tube 100 are of a split-type construction. Specifically, the delivery body 112 of the guiding device 110 is movably held in the holding channel 12106 of the fixing body 121, the distance from the fluid inlet 1102 of the drainage body 111 of the guiding device 110 to the adhesive surface 12101 of the fixing body 121 is allowed to be adjusted, and the distance from the fluid inlet 1102 of the drainage body 111 to the adhesive surface 12101 of the fixing body 121 can be kept at a fixed distance, so that a doctor can select different fixed distances according to the physical conditions of different patients, and the flexibility of the nephrostomy tube 100 is improved.

Specifically, the circumscribed securing device 120 of the nephrostomy tube 100 further comprises a limiting body 123, wherein the limiting body 123 is disposed on the securing body 121, and the limiting body 123 is movably mounted to the delivery body 112 of the guiding device 110. The stop body 123 is switchable between a locking state and an active state, wherein the stop body 123 in the active state allows the conveying body 112 of the guiding device 110 to move within the retaining channel 12106 of the fixed body 121 to adjust the distance of the adhesive surface 12101 of the fixed body 121 to the fluid inlet 1102 of the guiding device 110; the limiting body 123 in the locked state can fix the conveying body 112 of the guiding device 110 to the fixing body 121, limiting the movement of the conveying device 110 within the holding channel 12106 of the fixing body 121.

In this embodiment of the present invention, the limiting body 123 includes a fitting part 1231, an elastic part 1232 and a driving part 1233, wherein the fitting part 1231 has an accommodating space 12310, the elastic part 1232 has a deformation passage 12320, and the driving part 1233 has a movable passage 12330. The fitting 1231 of the stopper body 123 is provided to the fixing body 121 such that the accommodating space 12310 is communicated with the holding passage 1206 of the fixing body 121. The elastic member 1232 is disposed in the accommodating space 12310 of the fitting 1231, the elastic member 1232 is held between the fitting 1231 and the driving member 1233, and the deformation passage 12320 of the elastic member 1232 communicates with the accommodating space 12310 of the fitting 1231. The driving member 1233 is movably mounted on the assembly member 1231 up and down, and the driving member 1233 can drive the elastic member 1232 to deform, so that the limiting body 123 can be switched between the locking state and the moving state.

Referring to fig. 13A to 14, when the limiting body 123 is in the active state, the distance between the driving element 1233 and the assembly element 1231 is sufficient, the elastic element 1232 is not compressed, the elastic element 1232 is not deformed, and in the natural state, the conveying body 112 of the guiding device 110 is movably held by the holding channel 1206 of the fixing body 121, the accommodating space 12310 of the assembly element 1231, the deformation channel 12320 of the elastic element 1232, and the active channel 12330 of the driving element 1233. At this time, the distance from the fluid inlet 1122 of the conveying body 112 of the guide device 110 to the fixing body 121 is allowed to be adjusted. When the driving member 1233 and the assembling member 1231 move relatively close to each other, the driving member 1233 presses the elastic member 1232, the elastic member 1232 is deformed, the width of the deformation passage 12320 of the elastic member 1232 is reduced, and the elastic member 1232 is tightly attached to the conveying main body 112 and presses the conveying main body 112. Further, under the compression of the driving element 1233, the upper end of the elastic element 1232, which is deformed, is squeezed into the space between the conveying main body 112 and the driving element 1233, and is tightly attached to the inner walls of the conveying main body 112 and the driving element 1233. The deformed lower end of the elastic member 1232 is pressed into between the transport body 112 and the fitting 1231, and is closely attached to the inner walls of the transport body 112 and the fitting 1233. In this way, the delivery body 112 of the guiding device 110 is fixed to the stopper body 123, and the distance between the fluid inlet 1102 of the guiding device 110 and the adhesive surface 12101 of the fixing body 121 is fixed.

More specifically, the driving member 1233 includes a maintaining portion 12331, a movable connecting portion 12332 extending downward from the maintaining portion 12331 at a distance, and a deformation driving portion 12333, wherein the deformation driving portion 12333 is located inside the movable connecting portion 12332, and the movable passage 12330 is formed in the deformation driving portion 12333. The assembly member 1231 includes a mounting portion 12311 and an accommodating portion 12312, the accommodating space 12310 penetrates the accommodating portion 12312 and the mounting portion 12311, the mounting portion 12311 is fixed to the fixing body 121, and the accommodating portion 12312 integrally extends upward from the mounting portion 12311. The movable connection portion 12332 of the driving member 1233 is vertically movably installed in the accommodating portion 12312 of the assembly member 1231 in such a manner that the deformation driving portion 12333 is held in the accommodating space 12310. The elastic member 1232 is held between the bottom of the accommodating part 12312 and the deformation driving part 12333.

Preferably, the movable connection portion 12332 of the driving member 1233 is vertically movably mounted to the accommodating portion 12312 of the fitting 1231 by means of screw connection. For example, the movable connection portion 12332 of the driving member 1233 is rotated clockwise, so that the driving member 1233 moves downward relative to the accommodating portion 12312 of the assembly member 1231, the deformation driving portion 12333 presses the elastic member 1232 downward, deforms the elastic member 1232, and presses the conveying body 112 of the guiding device 110, the limiting body 123 is switched to the locking state, and fixes the conveying body 112 of the guiding device 110 to the fixing body 121, and the guiding device 110 cannot be displaced relative to the externally-connectable fixing device 120. Further, the movable connection portion 12332 of the driving member 1233 is rotated counterclockwise, so that the driving member 1233 moves upward relative to the assembly member 1231, the deformation driving portion 12333 and the elastic member 1232 are separated, the elastic member 1232 releases the elastic potential energy and restores to the natural state, the position limiting member 123 is switched to the movable state, and the relative positions of the external fixing device 120 and the guiding device 110 are allowed to be adjusted.

In a specific embodiment of the present invention, the mounting portion 12311 of the fitting 1231 is fixed to the holding surface 12102 of the hard holding layer 1211 of the fixing body 121. For example, the mounting portion 12311 of the assembly 1231 may be securely bonded to the retaining surface 12102 of the rigid retaining layer 1211 by an adhesive or a heat and pressure process. Alternatively, the mounting portion 12311 of the fitting 1231 may be fixed between the hard holding layer 1211 and the soft adhesive layer 1212 of the fixing body 121.

Referring to fig. 15A and 15B, in a specific embodiment of the present invention, the mounting portion 12311 of the fitting 1231 is detachably mounted to the fixing body 121. Thus, the limiting body 123 can be selectively mounted on the fixing body 121 according to the use requirement. Specifically, the circumscribed fastening device 120 further includes a mounting boss 124, wherein the mounting boss 124 extends outward from the rigid retention layer 1211, and the mounting portion 12311 of the mounting member 1231 of the limiting body 123 is detachably mounted to the mounting boss 124 to be held outside the fastening body 121. For example, but not limited to, the mounting portion 12311 may be removably mounted to the mounting boss 124 by a threaded connection, an interference fit, a clearance fit, a snap fit, etc.

Referring to fig. 16-24, a fixed nephrostomy tube device with an outer load bearing member in accordance with a preferred embodiment of the present invention is illustrated.

The fixed nephrostomy tube device with outer bearing member comprises a nephrostomy tube 810, a fixing unit 820 and an outer bearing member 830.

In this embodiment, the nephrostomy tube 810 has a drainage inlet 8101, a drainage outlet 8102 and a drainage channel 8103, wherein the drainage inlet 8101 and the drainage outlet 8102 are respectively located at two ends and are communicated with the drainage channel 8103. The nephrostomy tube 810 is adapted to be inserted into a subject, and the drainage inlet 8101 is located in the subject. The object of use may be formed with a receiving passage, the object of use forming a receiving opening in the body surface, the receiving opening being adapted to communicate with the receiving passage and the environment external to the body. The nephrostomy tube 810 is adapted to pass through the receiving opening to access the receiving passage. In addition, a human body will be described as an example of a target. The nephrostomy tube 810 is provided with a marker line so that the nephrostomy tube 810 can be positioned under a detection device after being inserted into the interior of the body to facilitate the operator to control the position and depth of insertion.

The nephrostomy tube 810 is adapted to be inserted from outside the body of a subject to the location of the kidney of the subject, and the outer receiving member 830 is adapted to be placed outside the body of the subject to receive fluid from the nephrostomy tube 810, with more and more fluid entering the outer receiving member 830 as the time of use increases, resulting in an increasing weight of the outer receiving member 830.

The fixing unit 820 is adapted to be installed outside the body of the subject, and serves to fix the nephrostomy tube 810 so as to prevent the nephrostomy tube 810 from coming out of the body of the subject, and serves to fix the external load so as to reduce the burden of the fixing unit 820 on the nephrostomy tube 810.

In detail, the fixing unit 820 includes a tube fixing part 821 and an integral fixing part 822, the body fixing part 822 is adapted to be fixed to a body surface of a subject, and the tube fixing part 821 is adapted to be fixed to the body fixing part 822 to indirectly fix the nephrostomy tube 810 by the body fixing part 822 fixed to the body surface of the subject, so that if the external receiving member 830 is directly received by the nephrostomy tube 810, a load applied to the nephrostomy function can be reduced by the fixing unit 820, and thus, on the one hand, a possibility of the nephrostomy tube 810 coming out of the body of the subject can be reduced, and on the other hand, a pull on the nephrostomy tube 810 due to the external receiving member 830 shaking can be reduced. In other words, by the fixing unit 820, the effect that the external receiving member 830 may have on the nephrostomy tube 810 is transferred to the body surface of the subject, not to the inside of the body, thereby reducing the possibility of secondary damage to the passage in the body of the subject, such as a stoma passage.

The outer receiving member 830 may be provided to the pipe fixing part 821 or the body fixing part 822 of the fixing unit 820. The body fixing portion of the fixing unit 820 is used to fix the pipe fixing portion 821, which may be integrally formed, or may be formed by mounting the fixing unit 820 to each other at a later stage.

The tube fixing part 821 is adapted to tighten the nephrostomy tube 810 to prevent the nephrostomy tube 810 from moving in an axial direction or a radial direction of the tube fixing part 821. The body fixing part 822 is to fix the tube fixing part 821 to prevent the tube fixing part 821 from moving with respect to the body fixing part 822. In the present embodiment, the tube fixing part 821 of the fixing unit 820 is provided to surround the nephrostomy tube 810 to fix the nephrostomy tube 810 at each position on the circumferential side of the nephrostomy tube 810. It is of course understood that the arrangement of the relative positions of the tube fixing part 821 and the renal fistula tube 810 is not limited thereto. The body fixing part 822 of the fixing unit 820 is disposed to surround the pipe connecting part to fix the pipe fixing part 821 at each position on the circumferential side of the pipe fixing part 821. It is of course understood that the arrangement of the relative positions of the tube fixing part 821 and the body fixing part 822 is not limited thereto.

The body-securing part 822 is adapted to be arranged with a large cross-sectional area with respect to the nephrostomy tube 810 to occupy a relatively large area of the body surface of the subject, thereby dispersing the load from the nephrostomy tube 810 or the outer receiving member 830 to the subject through the body-securing part 822.

Further, the outer receiving member 830 may be provided at the tube fixing part 821 or the body fixing part 822 of the fixing unit 820. When the outer receiving member 830 is provided to the pipe fixing part 821 of the fixing unit 820, the load of the outer receiving member 830 is shared by the body fixing part 822 disposed around the pipe fixing part 821.

In the present embodiment, since the pipe fixing portion 821 and the body fixing portion 822 of the fixing unit 820 are integrally connected, it is described here by way of example that the outer receiving member 830 is disposed at the pipe fixing portion 821 of the fixing unit 820, and actually, since the pipe fixing portion 821 and the body fixing portion 822 are integrally molded, it is difficult to distinguish between specific boundaries therebetween, and the outer receiving member 830 may be disposed at the body fixing portion 822 of the fixing unit 820.

In detail, the outer receiving member 830 has a receiving cavity 8300 and a receiving port 8301 communicating with the receiving cavity 8300, the nephrostomy tube 810 has the drainage outlet 8102, and the receiving port 8301 of the outer receiving member 830 is adapted to be communicated with the drainage outlet 8102 of the nephrostomy tube 810 to receive fluid from the nephrostomy tube 810. The outer receiving member 830 may be, but is not limited to, a urine bag, a connection tube, a detection device, etc. In the present embodiment, the outer receiving member 830 is used as a bag.

The fixed nephrostomy tube device further comprises a connection unit 840, wherein the outer receiving member 830 is fixed to the fixing unit 820 by the connection unit 840 and the receiving port 8301 of the outer receiving member 830 is aligned with the drainage outlet 8102 of the nephrostomy tube 810. It will be understood, of course, that the outer socket member 830 can be directly connected to the fixed unit 820, for example, by an integral connection.

In this embodiment, the connection unit 840 includes a first connection member 841 and a second connection member 842, the first connection member 841 is adapted to be disposed on the pipe fixing portion 821 or the body fixing portion 822 of the fixing unit 820, and the second connection member 842 is adapted to be disposed on the outer socket member 830, for example, near the socket 8301 of the outer socket member 830, or the socket 8301 is defined directly by the second connection member 842. The first connector 841 or the second connector 842 may be integrally connected to the fixing unit 820 or the outer receiving member 830 in advance, or may be later arranged on the fixing unit 820 and the outer receiving member 830 by mounting.

The first connection member 841 and the second connection member 842 may be detachably mounted or may be integrally formed. In this embodiment, the first connector 841 and the second connector 842 are detachably connected, and the connection manner may be screw connection, clamping connection, or the like. It will be understood by those skilled in the art that the present invention is illustrative only and is not to be construed as limiting the manner in which the first connector 841 and the second connector 842 are connected. For example, the first connecting member 841 is formed with a limiting groove 8410, and at least a portion of the second connecting member 842 is adapted to be clamped into the limiting groove 8410 of the first connecting member 841.

The connection portions of the first connection member 841 and the second connection member 842 may be made of a material with elasticity, such as silicone, rubber or other bio-safe material. When the second connector 842 is mounted to the first connector 841, the second connector 842 or the first connector 841 can be clamped to the other by slightly deforming one of the second connector 842 or the first connector 841 due to the elastic material, and can naturally recover to deform after being released so that the connection between the two is tighter.

Further, the connection unit 840 includes a connection auxiliary 843, and the connection auxiliary 843 is used to lock the first connection member 841 and the second connection member 842, so that the first connection member 841 and the second connection member 842 are more tightly connected. The connection aid 843 is suitably made of a hard material, so that the connection aid 843 can be fastened to the first connection member 841 and the second connection member 842 after the first connection member 841 is coupled to the second connection member 842. In detail, the second connector 842 is formed with a positioning groove 8420, and the positioning groove 8420 of the second connector 842 is located in the limiting groove 8410 of the first connector 841. When the connection auxiliary 843 is installed to fasten the first connection member 841 and the second connection member 842, at least a portion of the connection auxiliary 843 is adapted to be installed in the positioning groove 8420 of the second connection member 842 to be restrained at the second connection member 842 and to function to fasten the first connection member 841 and the second connection member 842. The connection auxiliary 843 inwardly restrains the second connection member 842 and the first connection member 841 from the outside of the second connection member 842 and the first connection member 841 so that the second connection member 842 and the first connection member 841 are closely fitted to each other, thereby preventing fluid from leaking out of the second connection member 842 and the first connection member 841.

The contour of the limiting groove 8410 of the first connecting member 841 is set to be similar to the contour of the second connecting member 842, so that the second connecting member 842 can be tightly fitted with the first connecting member 841 at the position of the limiting groove 8410. The contour of the positioning groove 8420 of the second connector 842 is configured to be similar to the contour of the connection assistant 843 such that the connection assistant 843 can be closely fitted to the second connector 842 at the position of the positioning groove 8420.

The number of the retaining grooves 8410 may be two, three, or more, and the number of the positioning grooves 8420 may be two, three, or more, and it is understood that the retaining grooves 8410 and the positioning grooves 8420 may be formed on the circumferential sides of the first and

second connection members

841 and 842, respectively, or may be formed on the top sides or bottom sides of the first and

second connection members

841 and 842, so that the first and

second connection members

841 and 842 may be more closely combined.

In this embodiment, the first connector 841 and the second connector 842 are respectively implemented in a circular shape, so that the first connector 841 and the second connector 842 do not need to be aligned during the installation of the first connector 841 and the second connector 842 to complete the installation, and the relative positions of the first connector 841 and the second connector 842 can be adjusted based on the need after the installation. Further, the connection assistant 843 is implemented to be circular to lock the first and

second connectors

841 and 842 at various positions along the circular contour of the first and

second connectors

841 and 842. It is of course understood that the contact between the connection aid 843 and the first connector 841 and the second connector 842 may be spaced apart, for example, the connection aid 843 only fastens the connection between the first connector 841 and the second connector 842 at predetermined positions. The connection auxiliary 843 may be shaped similarly to the first connection member 841 and the second connection member 842, or may be shaped differently from each other.

It is to be understood that the shapes of the first connector 841, the second connector 842, and the connection auxiliary 843 may be, but are not limited to, triangular, rectangular, oval, polygonal, etc.

Further, the connection assistant 843 has a first end 8431, a second end 8432, and a connection port 8430 formed between the first end 8431 and the second end 8432, and the first end 8431 and the second end 8432 of the connection assistant 843 can be opened to form the connection port 8430 and can also be closed to form a circular ring structure. The connection assistant 843 has an open state and a closed state and the connection assistant 843 is operable to shift between the open state and the closed state. When the connection assistant member 843 is in the open state, the connection port 8430 is formed and can be enlarged by controlling the distance between the first end 8431 and the second end 8432, so that the connection assistant member 843 can be easily coupled to the first connection member 841 and the second connection member 842 through the connection port 8430. When the connection assistant 843 is in the closed state, the connection port 8430 is closed, and the first end 8431 and the second end 8432 are locked such that the connection assistant 843 fastens the first connection 841 and the second connection 842. The first end 8431 and the second end 8432 of the connection aid 843 are configured to be detachably connected, such as by a snap connection, an adhesive connection, or a threaded connection. Of course, it will be understood by those skilled in the art that the connection manner of the first connection member 841 and the second connection member 842 is merely illustrative, and that the first connection member 841 and the second connection member 842 can be modified and expanded based on the principle.

Further, the first connector 841 of the connection unit 840 is disposed at the pipe fixing portion 821 of the fixing unit 820 to bear the outer receiving member 830 by the fixing unit 820. It is understood that the positions of the first connector 841 and the second connector 842 can be interchanged.

The fixing unit 820 is not only used to carry the outer receiving member 830 but also to fix the nephrostomy tube 810. In detail, the fixing unit 820 includes the tube fixing part 821 and the body fixing part 822, the body fixing part 822 is adapted to be connected to the tube fixing part 821, the tube fixing part 821 is adapted to be fixedly connected to the body fixing part 822, and the body fixing part 822 is adapted to be fixedly connected to the body surface of the subject to be used, so as to fix the nephrostomy tube 810 at a predetermined position by the tube fixing part 821 of the fixing unit 820.

In other words, unlike the conventional fixing of the nephrostomy tube 810 directly by the body skin forming the accommodation opening, in the present embodiment, the nephrostomy tube 810 is fixed by the tube fixing portion 821 of the fixing unit 820, the tube fixing portion 821 is fixed by the body fixing portion 822, and the body fixing portion 822 is fixed to the body surface of the subject, so that the nephrostomy tube 810 is fixed to the body surface of the subject by the fixing unit 820.

In this way, during the use of the nephrostomy tube 810, on the one hand, no tightening operation is required for the receiving opening of the subject to be used in order to fix the nephrostomy tube 810, and on the other hand, when the nephrostomy tube 810 is pulled out or is subjected to a large external force with a tendency to escape from the receiving passage of the subject outwards, the site to which the force from the nephrostomy tube 810 is applied is concentrated on the fixing unit 820. It is possible that a body surface contacting the body fixing part 822 of the fixing unit 820 receives a large force for the subject, and it is not a main force for the receiving opening of the subject. When the receiving opening is a wound, the chance of the receiving opening being re-injured is reduced.

It is also worth noting that since the pressure of the fixed indwelling device on the position of the accommodation opening of the subject is small when the fixed indwelling device is subjected to an external force, the fixed indwelling device can bear a large load and does not have a great influence on the accommodation passage of the subject or the body tissue in the vicinity of the accommodation opening.

In addition, since the pressure applied to the fixed retention device is distributed to the body surface of the subject, once the exposed nephrostomy tube 810 is pulled during the activity of the subject, the force can be distributed to the body surface of the subject rather than being concentrated at the location of the receiving opening, thereby avoiding the pulling of muscle and tissue at this location. From another point of view, the range of movement of the object of use can be expanded without always worrying about tearing to the accommodation opening immediately due to its own movement.

Further, the tube fixing portion 821 of the fixing unit 820 is provided to extend outward from the periphery of the nephrostomy tube 810, and the nephrostomy tube 810 is fixed to and clasped to the tube fixing portion 821. The body fixing part 822 is formed to extend outward from the circumference of the pipe fixing part 821, and the pipe fixing part 821 is surrounded by the body fixing part 822. In this way, the pipe fixing part 821 can be more stably supported to the fixing unit 820. Once the body fixing part 822 of the fixing unit 820 is fixed to the skin surface of the subject, since the body fixing part 822 is fixedly connected to the tube fixing part 821, the position of the nephrostomy tube 810 fixedly connected to the tube fixing part 821 is fixed.

Further, in the present embodiment, the tube fixing part 821 and the body fixing part 822 of the fixing unit 820 are designed to be integrally formed, so that the connection between the tube fixing part 821 and the body fixing part 822 of the fixing unit 820 is more stable.

Further, the structure and shape of the fixing unit 820 are designed such that the whole of the fixed indwelling device is conveniently installed during use and facilitates the movement of the subject of use.

In detail, referring to fig. 7A to 9, the body fixing part 822 of the fixing unit 820 has two ends 8221 extending along a length direction of the fixing unit 820 and two opposite recesses 8222 inwardly recessed and extending between the two ends 8221. The entire fixing unit 820 is designed to resemble a saddle shape or be butterfly-shaped.

When the fixed indwelling device is installed to a subject, the fixing unit 820 is attached to the skin surface of the subject, and particularly, in the present embodiment, the fixing unit 820 is attached to the waist of the subject.

The two inwardly recessed recesses 8222 of the fixing unit 820 are respectively located in the up-down direction, and when a user bends down toward the side on which the fixing unit 820 is mounted, the skin near the fixing unit 820 of the user does not make excessive contact with the fixing unit 820 itself when pressed due to the two recesses 8222 of the fixing unit 820, thereby giving the user a sense of discomfort.

In other words, the body fixing portion 822 of the fixing unit 820 has an outer circumferential edge 8223, the outer circumferential edge 8223 has an upper circumferential edge 82231, a lower circumferential edge 82232, a left circumferential edge 82233 and a right circumferential edge 82234, the upper circumferential edge 82231 and the lower circumferential edge 82232 are oppositely disposed, the left circumferential edge 82233 and the right circumferential edge 82234 are oppositely disposed, and the upper circumferential edge 82231 and the lower circumferential edge 82232 are designed to be inwardly recessed. The cross-section of the fixing unit 820 is designed to be a position where the overall cross-sectional size is minimum at the lumbar position, and the cross-sections are designed to be larger at the front and rear surfaces of the body than at the lumbar position. On the one hand, the contact between the fixed indwelling device and the skin of the waist at the waist position is reduced to facilitate the movement of the subject, and on the other hand, the installation is convenient because the size of the fixing unit 820 of the fixed indwelling device is small at the waist position.

The junction of each end 8221 and the recess 8222 of the fixing unit 820 is designed to be rounded to improve the comfort of the fixing unit 820 mounted on the skin.

Further, at least a portion of the fixation unit 820 may be made of a flexible material, which on the one hand is adapted to fit the curve of the skin surface of the human body, and on the other hand may improve the comfort of the user in whom the fixed indwelling device is installed.

The fixing unit 820 has an attachment surface 8224, the attachment surface 8224 may be formed at the body fixing part 822 or the body fixing part 822 and the tube fixing part 821, the attachment surface 8224 is disposed at a side facing the nephrostomy tube 810, and the attachment surface 8224 is adapted to be attached to a skin surface of a subject to be used.

The fixing unit 820 includes a substrate layer 8225, an adhesive layer 8226 and a peelable layer 8227, wherein the adhesive layer 8226 is located between the substrate layer 8225 and the peelable layer 8227. The substrate layer 8225 is made of a flexible material, the adhesive layer 8226 is attached to the substrate layer 8225 to be adhered to a skin surface of a subject to be used, and the peelable layer 8227 covers the surface of the adhesive layer 8226 to be peeled off to expose the adhesive layer 8226 when the fixing unit 820 is in standby. The bonding surface may form at least a portion of the attachment surface 8224. In this embodiment, the entire attachment surface 8224 is configured to be adhesively attached to the skin surface of the subject. The body fixing portion 822 may include only the substrate layer 8225, or only the substrate layer 8225 and the adhesive layer 8226, that is, the attachment surface 8224 may be located on the substrate layer 8225 or the adhesive layer 8226, and the substrate layer 8225 or the adhesive layer 8226 may be attached to a target object by the material properties of the substrate layer 8225 or the adhesive layer 8226 itself, or the body fixing portion 822 may be fixed to the target object by an intermediate, for example, bio-safe glue. It is of course to be understood that the described media are exemplary only and are not intended as limitations on the present invention.

The tube fixing part 821 and the body fixing part 822 of the fixing unit 820 include at least a part of the base material layer 8225, at least a part of the adhesive layer 8226, and at least a part of the peelable layer 8227, respectively. The nephrostomy tube 810 is provided to the tube fixing portion 821 and optionally, the nephrostomy tube 810 may be integrally molded with at least a part of the tube fixing portion 821, or the nephrostomy tube 810 and the tube fixing portion 821 may be separately molded.

For ease of installation, the peelable layer 8227 is designed as two portions, a first portion peelable layer 82271 and a second portion peelable layer 82272. The peelable layer 8227 comprises the first partial peelable layer 82271, the second partial peelable layer 82272 and has a separation line 82273 and a through hole 82270, the separation line 82273 passing through the through hole 82270 and the through hole 82270 passing through the nephrostomy tube 810, wherein the nephrostomy tube 810 is located in the direction of extension of the separation line 82273 and the separation line 82273 separates the first partial peelable layer 82271 and the second partial peelable layer 82272. The kidney stoma tube 810 may be located at the junction of the first partial peelable layer 82271 and the second partial peelable layer 82272.

When the fixed indwelling device is in use, it is first necessary to align the nephrostomy tube 810 with the receiving opening and then push the nephrostomy tube 810 into the receiving passage, it will be appreciated that the nephrostomy tube 810 may be advanced into the receiving passage with the aid of some auxiliary guiding means, especially if the nephrostomy tube 810 is made of a flexible material and lacks some rigidity.

After the nephrostomy tube 810 has entered the receiving channel to a certain depth, the fixing unit 820 is still at a certain distance from the subject, and at this time, the first part of the peelable layer 82271 of the peelable layer 8227 or the second part of the peelable layer 82272 may be peeled off to expose the corresponding part of the adhesive layer 8226. In the present embodiment, the separation line 82273 divides the peeling layer into two, and the entire fixing unit 820 is arranged symmetrically to the separation line 82273.

After one half of the adhesive layer 8226 of the fixing unit 820 is exposed, the exposed portion may be directly advanced forward to be adhered to the skin surface of the subject, and then the other half of the peelable layer 8227 may be continuously peeled off, and the remaining exposed portion of the adhesive layer 8226 may be adhered to the skin surface of the subject.

In the above manner, the peelable layer 8227 is divided into two, and the area that the operator needs to bond at a time during the operation is reduced, thereby facilitating the bonding.

In addition, it is noted that the separation line 82273 is disposed to extend between two recesses 8222, that is, the separation line 82273 extends in the width direction of the fixing unit 820. Two of the ends 8221 are arranged to be expanded with respect to the position of the recess 8222, and the junction of the ends 8221 and the recess 8222 is rounded to facilitate handling during bonding.

In another embodiment of the present invention, the number of the separation lines 82273 may be two, respectively extending between the two recesses 8222 to divide the peelable layer 8227 into three portions, a first portion peelable layer 82271, a second portion peelable layer 82272 and a third portion peelable layer, wherein the second portion peelable layer 82272 is located between the first portion peelable layer 82271 and the third portion peelable layer and the nephrostomy tube 810 is disposed in the second portion peelable layer 82272, and the through hole 82270 is formed in the second portion peelable layer 82272.

In use, the second portion peelable layer 82272 can be removed, for example, by pulling the second portion peelable layer 82272 through the nephrostomy tube 810 or by cutting a knife directly into the second portion peelable layer 82272, so that the second portion peelable layer 82272 is pulled away from the connection between the nephrostomy tube 810 and the fixation unit 820.

When the nephrostomy tube 810 is guided to a subject to be used to a desired depth, the operator may directly attach the adhesive layer 8226 corresponding to the second partial peelable layer 82272 to the skin surface of the subject to be used, that is, the skin surface in the vicinity of the receiving opening for receiving the nephrostomy tube 810, so that the nephrostomy tube 810 is fixed.

However, the operator may remove the first partial peelable layer 82271 or the third partial peelable layer to attach the two end portions 8221 to the skin surface of the subject, respectively, so that the tube fixing portion 821 to which the nephrostomy tube 810 is fixed to the skin surface of the subject by the body fixing portion 822.

In addition, in this way, the tube fixing part 821 fixing the nephrostomy tube 810 can be directly fixed to a skin surface of a subject, for example, a lumbar position, while advancing the fixed indwelling device toward the subject, and the body fixing part 822 fixing the tube fixing part 821 can be adjustably fixed according to a skin curve of a human body after the tube fixing part 821.

Further, it is understood that, in the present embodiment, the tube fixing part 821 and the body fixing part 822 of the fixing unit 820 are fixed together to the body surface of the subject by adhesion. The tube fixing part 821 fixes the nephrostomy tube 810 by integrally connecting, fixes the tube to the body fixing part 822 by integrally connecting, and fixes the tube to the body surface of the subject by bonding. In this way, the fixation of the nephrostomy tube 810 of the fixed indwelling device is very stable, and the nephrostomy tube 810 is difficult to move forward and backward or left and right relative to the receiving opening in the receiving passage, and on the premise of keeping the fixation unit 820 and the skin surface of the subject fixed.

It is understood that the tube fixing part 821 is not necessarily fixed to the body surface of the subject along with the body fixing part 822 of the fixing unit 820, and mainly functions to fix the nephrostomy tube 810. Therefore, according to an embodiment of the present invention, the nephrostomy tube 810 is fixed to the tube fixing part 821, the tube fixing part 821 is fixed to the body fixing part 822, the body fixing part 822 is fixed to the body surface of the subject and the tube fixing part 821 is not fixed to the body surface of the subject.

It is to be understood that the tube fixing portion 821 is not necessarily fixed to the nephrostomy tube 810 in an integral fixing manner, and may be fixed in various manners, such as a snap fixing connection, a screw fixing connection, or the like.

Further, in this embodiment, the tube fixing portion 821 is integrally provided around the nephrostomy tube 810 and clasps the nephrostomy tube 810 to prevent the nephrostomy tube 810 from moving forward and backward or from moving left and right with respect to the accommodation opening.

In the present embodiment, the respective portions of the fixing unit 820 are provided to have uniform thickness, for example, the respective positions of the body fixing part 822 and the tube fixing part 821 of the fixing unit 820 are provided to have uniform thickness.

The fixing unit 820 has an inner side surface and an outer side surface, which are disposed opposite to each other. The attachment surface 8224 is formed on the inner side surface, which is adapted to contact the skin surface of the subject. The inner side surface and the outer side surface may be a plane, respectively, so that the subject does not feel discomfort due to the presence of the fixing unit 820 and the nephrostomy tube 810 after the fixing unit 820 is attached to the subject.

Further, the substrate layer 8225 of the fixing unit 820 may be a substrate having elasticity such as a film, a nonwoven fabric, a cotton fabric, a knitted fabric, a laminate of a nonwoven fabric and a film. Examples of the material of these substrates include components such as polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polystyrene, polyamide, polyolefin, nylon, cotton, pulp, rayon acetate, rayon/polyethylene terephthalate composite, polyacrylonitrile, polyvinyl alcohol, acrylic polyurethane, ester polyurethane, ether polyurethane, styrene-isoprene-styrene copolymer, styrene-butadiene-styrene copolymer, styrene-ethylene-propylene-styrene copolymer, and ethylene-vinyl acetate copolymer.

The substrate layer 8225 may be mixed with various strength control agents, brighteners such as inorganic powders, dyes, pigments, and the like, which are widely used in the art. The substrate layer 8225 may be produced by any one of uniaxial stretching, biaxial stretching and non-stretching. The base layer 8225 may have a single-layer structure or a multilayer structure in which a plurality of different or same layers are stacked.

The thickness of the substrate layer 8225 is not particularly limited, but may be optionally μm or less for easy acquisition of stretchability and moisture permeability, and the strength of the substrate layer 8225 may be μm or more for easy acquisition of strength.

Further, the adhesive layer 8226 may be made of a rubber-based adhesive, an acrylic-based adhesive, a silicon-based adhesive, a hydrocolloid, or the like. When the fixed indwelling device is attached to the skin surface of a subject to be used, the adhesive layer 8226 is located between the subject to be used and the base layer 8225, and an isocyanate-based crosslinking agent, a metal chelate-based crosslinking agent, a thickener, or the like may be appropriately added to the material for producing the adhesive layer 8226 in consideration of the adhesiveness and adhesive strength between the base layer 8225 and the adhesive layer 8226. Preferably, the molecular weight of the adhesive component forming the adhesive layer 8226 is set high to suppress the penetration of the adhesive into the skin. The adhesive layer 8226 is not preferably too thick, for example, μm or less, in view of moisture permeability, and the adhesive layer 8226 is not preferably too thin, for example, μm or more, in view of adhesive property. It is understood that the bonding layer 8226 may be configured to cover the entire surface of the substrate layer 8225, and may be designed to be arranged on the substrate layer 8225 in a regular pattern such as dots, stripes, or a random pattern.

Further, the peelable layer 8227 may be designed as paper or plastic.

In addition, in the present embodiment, the nephrostomy tube 810 includes a nephrostomy tube main body 811, and the nephrostomy tube main body 811 is formed with the drainage passage 8103, the drainage inlet 8101, and the drainage outlet 8102. The main body 811 of the nephrostomy tube has an initial end 8111 and an opposite end 8112, the drainage inlet 8101 is located at the initial end 8111, and the drainage outlet 8102 is located at the end 8112. The drainage channel 8103 extends between the starting end 8111 and the terminal end 8112 of the nephrostomy tube body 811. The distal end 8112 of the nephrostomy tube body 811 may be provided to the fixing unit 820 and located at the tube fixing part 821 of the fixing unit 820.

The fixing unit 820 may be formed with a fixing opening 8201, and the fixing opening 8201 is located at the tube fixing portion 821 of the fixing unit 820. The drainage outlet 8102 of the nephrostomy tube body 811 of the nephrostomy tube 810 communicates with the fixing opening 8201 of the fixing unit 820 so that fluid from the inside of the body enters the drainage channel 8103 through the drainage inlet 8101 of the nephrostomy tube body 811 and is then transferred from the fixing opening 8201 of the fixing unit 820 to the outside. It is understood that the drainage opening 8101 of the nephrostomy tube 810 and the fixation opening 8201 of the fixation unit 820 may be one and the same. The distal end 8112 of the nephrostomy tube body 811 of the nephrostomy tube 810 extends to the position of the fixing opening 8201 of the fixing unit 820. It is of course understood that the main body 811 of the nephrostomy tube 810 may pass through the fixation opening 8201 of the fixation unit 820 and then continue to extend outwardly. In other words, the main body 811 of the nephrostomy tube 810 may extend on both sides of the fixing unit 820, respectively, and the outflow port 8102 of the nephrostomy tube 810 and the fixing opening 8201 of the fixing unit 820 are maintained at a large distance. A person skilled in the art can arrange the relative positional relationship of the drainage port 8102 of the renal fistula 810 and the fixing opening 8201 of the fixing unit 820 as desired.

Further, the nephrostomy tube 810 includes a balloon 813, wherein the balloon 813 is disposed on the nephrostomy tube body 811 of the nephrostomy tube 810 and is disposed adjacent to the starting end 8111 of the nephrostomy tube body 811. The balloon 813 can be inflated to expand the volume, which can play a role of compression hemostasis on one hand, and the inflated balloon 813 can prevent the nephrostomy tube body 811 from falling out on the other hand. In other words, the main body 811 of the nephrostomy tube can be fixed by the balloon 813 on the one hand and by the fixing unit 820 on the other hand, so that a double fixation is achieved to reduce the possibility of the main body 811 of the nephrostomy tube falling out.

The nephrostomy tube 810 has a fluid passage 8104, wherein the fluid passage 8104 is adapted to communicate with the balloon 813 to inflate or deflate the balloon 813. The fluid passage 8104 may be disposed along a length of the nephrostomy tube body 811, and the passages may be juxtaposed. The nephrostomy tube 810 is formed with a fluid outlet 8105, the fluid outlet 8105 is adapted to communicate with the fluid passage 8104, and the balloon 813 and the fluid outlet 8105 are located at both ends of the fluid passage 8104, respectively. Fluid may be inflated from the fluid passage 8104 to the bladder 813 through the fluid outlet 8105 to inflate the bladder 813 and may also flow out to the environment through the fluid outlet 8105 to deflate the bladder 813. It should be noted that the fluid filled in the air bag 813 may be gas or liquid, and may be selected according to the requirement.

The main body 811 of the nephrostomy tube may be made of a soft material, such as a rubber material or a silicone material. The air bag 813 may be made of a soft material, such as a rubber material or a silicone material. The main body 811 of the nephrostomy tube and the balloon 813 can be integrally formed.

Further, when the nephrostomy tube 810 of the fixed indwelling device is inserted into a predetermined position in the body and the fixing unit 820 is fixed to the body surface, the fluid outlet 8105 is exposed to facilitate the user's operation, for example, by inflating the balloon 813 by inflating air through the fluid outlet 8105.

In this embodiment, for ease of operation, the nephrostomy tube 810 further includes a delivery tube 813, the delivery tube 813 being in communication with the fluid passage 8104 for inflation by the delivery tube 813 towards the balloon 813.

The transfer tube 813 is disposed at the fixing unit 820 and communicates with the balloon 813 via the fixing unit 820. In other words, at least a portion of the fluid channel 8104 may be formed at the fixing unit 820. In this way, the user is not affected by the fixing opening 8201 of the fixing unit 820 during the operation of the transfer pipe 813. In the present embodiment, the transfer pipe 813 is disposed at a circumferential position of the fixing unit 820. The fixation between the fixation unit 820 and the patient has no influence on the transfer tube 813.

Further, in this embodiment, the nephrostomy tube 810 has at least one drainage slot 8106, and the number of the drainage slots 8106 may be one, two, three, four or more. The drainage inlet is disposed proximate to the starting end 8111 of the nephrostomy tube 810 relative to the terminal end 8112. Each drainage groove 8106 is communicated with the drainage inlet, and the drainage groove 8106 is formed by extending the drainage inlet towards the starting end 8111. The drainage groove 8106 is openly provided to the surface of the nephrostomy tube 810.

In this embodiment, the number of the drainage grooves 8106 is six. The nephrostomy tube 810 comprises a tube front section 814 and a tube rear section 815, the tube front section 814 comprises a support column 8141 and at least two partition walls 8142, the drainage slots 8106 are formed between two adjacent partition walls 8142, and the partition walls 8142 extend outwards from the peripheral side of the support column 8141. The rear tube section 815 extends the front tube section 814. The drainage inlet is located at the junction of the tube front section 814 and the tube rear section 815. Preferably, the cross-section of the partition wall 8142 is configured to be T-shaped and formed with a circular arc-shaped side surface to facilitate the introduction of the nephrostomy tube 810.

The nephrostomy tube 810 has a guide channel 8107 which can be penetratingly extended from the start end 8111 to the end 8112. The guide channel 8107 is adapted to be fitted with a guide such as a guide wire to guide the flexible nephrostomy tube 810 into a desired position. At least part of the guide channel 8107 of the nephrostomy tube 810 is formed in the anterior tube section 814 and at least part of the posterior tube section 815. The drainage channel 8103 of the nephrostomy tube 810 is formed in the tube posterior section 815 and the drainage groove 8106 communicates with the drainage channel 8103 via the drainage inlet 8101. At the location of the rear tube section 815, the drainage channel 8103 forms at least part of the guide channel 8107. In other words, at least part of the drainage channel 8103 and the guide channel 8107 are common.

In this embodiment, the number of drainage slots 8106 is six, the number of drainage inlets 8101 is six, and there is one drainage inlet 8101 for each drainage slot 8106. The number of the partition walls 8142 is six to partition and form six of the drainage slots 8106. At least part of the guide channel 8107 is formed in the support post 8141 of the tube front section 814.

Compared with the traditional nephrostomy tube 810, the nephrostomy tube 810 provided in the embodiment provides a plurality of drainage inlets 8101 for fluid to enter the nephrostomy tube 810, so that the probability that one drainage inlet 8101 is blocked to cause the whole nephrostomy tube 810 to fail is reduced. In addition, large agglomerates, such as blood clots, may be entrained in the fluid, and during the process of moving along the drainage groove 8106 toward the drainage inlet 8101 under the suction force at the location of the drainage inlet 8101, the blood clots may be separated into smaller clots by the partition wall 8142, thereby reducing the chance of the blood clots blocking the drainage inlet 8101.

It is understood that the plurality of drainage inlets 8101 may be arranged in the same plane, and that the plurality of drainage inlets 8101 may be arranged in a non-planar manner. The upper and lower ends of the plurality of drainage slots 8106 can be arranged to be flush, or the upper and lower ends of the plurality of drainage slots 8106 can be arranged to be staggered in height, so as to reduce the probability that the drainage slots 8106 are blocked.

Further, the drainage groove 8106 of the nephrostomy tube 810 is disposed close to the starting end 8111 of the nephrostomy tube 810, and at least a portion of the nephrostomy tube 810 is formed to be bent and extended outward around the starting end 8111, for example, in this embodiment, a structure similar to a pigtail is formed at the position of the starting end 8111 of the nephrostomy tube 810. In the course of introduction of the nephrostomy tube 810, the curved section of the nephrostomy tube 810 is guided along a guide to be straight, and the previously curved position is automatically curled into a curved shape, i.e., restored to its original shape, after the guide such as a guide wire is taken out, and in this way, the nephrostomy tube 810 itself can have a certain fixing action so as not to be easily removed from the body contents of the subject. In addition, due to the curved arrangement of the nephrostomy tube 810, irritation to the subject is reduced inside the body to facilitate longer wearing of the nephrostomy tube 810 by the subject.

Still further, the drainage slots 8106 can be designed to be of different lengths, such that different ones of the drainage inlets 8101 are located at different locations. In this embodiment, the longest drainage groove 8203 is disposed outside the curved portion of the nephrostomy tube 810, on the one hand to make the drainage groove 8106 function as much as possible for drainage, and on the other hand to make the drainage groove 8106 itself curve with the curvature of the nephrostomy tube 810, which reduces the chance of blockage at this location.

It will of course be appreciated that the nephrostomy tube 810 may be implemented as a straight tube, as shown with reference to figures 18 and 19, with the drainage inlet 8101 arranged in a stepped configuration to facilitate the reduction of the incidence of an occlusion.

Referring to fig. 25-26B, a stationary nephrostomy tube device with an outer receiving member 830 according to another preferred embodiment of the present invention is illustrated.

In this embodiment, the first connector 841 of the connection unit 840 is detachably screwed to the second connector 842, the first connector 841 is fixedly connected to the second connector 842 by rotating the second connector 842, and the first connector 841 and the second connector 842 are tightly connected by the thread arrangement of the two.

Referring to fig. 12, a fixed nephrostomy tube device with an outer receiving member 830 according to another preferred embodiment of the present invention is illustrated.

In this embodiment, the outer receiving member 830 is implemented as a pipe, such as a transfer pipe or a connecting pipe. The first connector 841 is provided to the tube fixing part 821 of the fixing unit 820 and is disposed around the gastrostomy tube 810, that is, around the fixing opening 8201 of the tube fixing part 821. The second connector 842 is disposed on the outer receiving member 830 and may be integrally formed with the outer receiving member 830. In other words, the nephrostomy tube 810 may be directly connected to the tube-fixing portion 821 of the fixing unit 820 by the connection unit 840. It is of course understood that the nephrostomy tube 810 may also be connected to the body fixing part 822 of the fixing unit 820.

Referring to fig. 28-30B, a stationary nephrostomy tube device with an outer receiving member 830 according to another preferred embodiment of the present invention is illustrated.

Specifically, the fixing unit 820 includes a tube fixing part 821 and an integral fixing part 822, wherein the tube fixing part 821 is used for fixing the nephrostomy tube 810, and the body fixing part 822 is adapted to be fixed to the body surface of the subject. The tube fixing part 821 is connected to the body fixing part 822 to be fixed by the body fixing part 822.

Since the nephrostomy tube 810 is fixedly attached to the tube-fixing portion 821, the tube-fixing portion 821 is fixedly attached to the body-fixing portion 822, and the body-fixing portion 822 is fixed to the body surface of the subject, when the nephrostomy tube 810 is pulled by an external force, the tube-fixing portion 821 receives most of the force from the nephrostomy tube 810, and the body-fixing portion 822 further receives most of the force from the tube-fixing portion 821, thereby distributing the pulling force to the portion of the body surface of the subject to which the body-fixing portion 822 is attached.

In this way, the possibility that the nephrostomy tube 810 is torn to cause injury to the stoma is greatly reduced, and on the one hand, the nephrostomy tube 810 can be safely fixed on the fixing unit 820, and on the other hand, the movement limitation of the subject during movement is also relieved to a certain extent, and the limitation on the movement range and the movement range is reduced.

In addition, the body fixing part 822 is disposed around the tube fixing part 821, and after the fixing unit 820 of the nephrostomy tube 810 is installed to the subject, the fixing unit 820 of the nephrostomy tube 810 can close the stoma to prevent the fluid overflowing through the stoma from continuously overflowing outward, thereby reducing the possibility of emitting odor.

Further, the fixation unit 820 has a retention channel 82110, the nephrostomy tube 810 is adapted to be inserted into the retention channel 82110 of the fixation unit 820 and can be retained in the retention channel 82110, the retention channel 82110 is sized to be adjustable. The holding channel 82110 may be adjusted to be larger when the renal fistula tube 810 needs to be detached from the fixing unit 820, and the holding channel 82110 may be adjusted to be smaller when the renal fistula tube 810 needs to be detached from the fixing unit 820.

It should be noted that, in the present embodiment, the kidney fistula tube 810 is implemented as a flexible tube, and may be made of rubber or silicone, so as to reduce the discomfort of the user. It will be understood by those skilled in the art that the material from which the nephrostomy tube 810 is made may be selected as desired and is intended to be illustrative only and not limiting of the invention. It will of course be appreciated that the nephrostomy tube 810 may also be implemented as a tube of a stiffer material, selected according to the actual requirements.

After the nephrostomy tube 810 is inserted into the holding passage 82110 of the fixing unit 820, the holding passage 82110 is adjusted to be narrowed, and the fixing unit 820 presses the nephrostomy tube 810 to be deformed, thereby clasping the nephrostomy tube 810. The nephrostomy tube 810 is provided with the drainage channel 8103, the drainage inlet 8101 and the drainage outlet 8102, and the drainage inlet 8101 and the drainage outlet 8102 are respectively communicated with the drainage channel 8103 at two ends of the drainage channel 8103.

In this embodiment, the nephrostomy tube 810 is fixed to the fixing unit 820 by pressing the nephrostomy tube 810 and the drainage channel 8103 of the nephrostomy tube 810 can be maintained in a conduction state. In other words, the nephrostomy tube 810 made of flexible material can maintain normal flow guiding function after being fixed.

In detail, the tube fixing part 821 of the fixing unit 820 includes a force application member 8211 and a deformable member 8212, wherein the force application member 8211 is disposed at opposite sides of the deformable member 8212 to relatively press the deformable member 8212 to be deformed, thereby changing the size of the holding passage 82110 formed by the deformable member 8212 and fixing the nephrostomy tube 810 passing through the holding passage 82110 formed by the deformable member 8212.

The nephrostomy tube 810 passes through the deformable member 8212 from an axial direction of the deformable member 8212, and the force application assembly 8211 is configured to apply a pressing force to the deformable member 8212 in the axial direction of the deformable member 8212 to deform the deformable member 8212 in a circumferential direction, thereby changing the size of the retention channel 82110.

In more detail, the force application component 8211 includes a fixed support seat 82111, a movable member 82112 and has a holding passage 82110 and a gap 821100, the holding passage 82110 is disposed through, and the gap 821100 is communicated with the holding passage 82110 and expands a space in a radial direction of the holding passage 82110 in the radial direction. The fixed support 82111 is adapted to be coupled to the patch to be secured thereto, the movable member 82112 is adapted to be movably coupled to the fixed support 82111, and the gap 821100 is formed between the movable member 82112 and the fixed support 82111. When the moveable member 82112 is moved to move toward the fixed support 82111, the gap 821100 is reduced.

The deformable member 8212 is accommodated in the gap 821100, and when the movable member 82112 is moved to move toward the fixed support base 82111, the deformable member 8212 can be pressed by the movable member 82112 and the fixed support base 82111 which move relatively to each other to be deformed in a radial direction.

In this embodiment, the holding channel 82110 of the deformable member 8212 is formed at a middle position of the deformable member 8212, which is defined as an inner side of the deformable member 8212, and correspondingly, an outer side of the deformable member 8212 is disposed at the force application member 8211, and when the deformable member 8212 is pressed by the fixed support seat 82111 and the movable member 82112 of the force application member 8211, the force application member 8211 restricts outward deformation of the deformable member 8212, thereby ensuring that the deformable member 8212 is deformed inward after being pressed to a certain extent, so as to change the size of the holding channel 82110.

In other words, the deformable member 8212 is configured to be captively mounted to the force application assembly 8211 and is captively restrained on the outside to allow for inward deformation.

Further, the moveable member 82112 includes a squeeze head 821121 and a locking housing 821122, the squeeze head 821121 is disposed within the locking housing 821122 and inside the locking housing 821122, and the squeeze head 821121 forms at least a portion of the retention channel 82110 therethrough. An accommodation chamber and an accommodation chamber port communicating with the accommodation chamber are formed between the pressing head 821121 and the lock housing 821122.

The fixed bearing 82111 includes a bottom support 821111 and a support housing 821112, the support housing 821112 being disposed on the bottom support 821111 and collectively forming at least a further portion of the retention channel 82110. The support housing 821112 is configured to extend upwardly from the bottom support 821111.

When the movable member 82112 is mounted on the fixed support seat 82111, the movable member 82112 is adapted to be mounted from the side of the support housing 821112 from top to bottom, and the support housing 821112 of the fixed support seat 82111 is adapted to be inserted into the accommodating cavity formed between the pressing head 821121 of the movable member 82112 and the locking housing 821122 through the accommodating cavity opening of the accommodating cavity.

The support housing 821112 defines a protrusion 821113 inwardly, the cross-section of the retention channel 82110 in this position is reduced to support the deformable member 8212, and the gap 821100 is defined between the pressing head 821121 of the movable member 82112 and the protrusion 821113 of the support housing 821112. When the deformable member 8212 is mounted in the gap 821100 of the force application member 8211, the pressing head 821121 of the movable member 82112 and the protrusion 821113 of the fixed support seat 82111 at the support housing 821112 restrict the movable member 8212 from moving up and down in the axial direction, and the support housing 821112 of the fixed support seat 82111 at the outer side of the deformable member 8212 restricts the extent to which the deformable member 8212 is deformed outward.

When the movable member 82112 is moved to move the pressing head 821121 toward the protrusion 821113 of the support housing 821112, the locking housing 821122 is also moved synchronously toward the direction close to the bottom support 821111 and the locking housing 821122 is located outside the support housing 821112 of the fixed support base 82111 at this time, and the pressing head 821121 is located inside the support housing 821112 of the fixed support base 82111. The lock housing 821122 is fixedly attached to an outer wall of the support housing 821112 of the fixed support base 82111.

In this embodiment, the lock housing 821122 of the moveable member 82112 is configured to be threadably coupled to the support housing 821112 of the stationary support base 82111. Optionally, the locking housing 821122 of the movable member 82112 may also be the supporting housing 821112 that is clamped to the fixed supporting seat 82111.

When the deformable member 8212 of the fixing unit 820 is in an initial state, the nephrostomy tube 810 can be easily passed through the holding passage 82110 and the holding passage 82110 of the fixing unit 820. After the movable member 82112 of the force application component 8211 of the fixed unit 820 or the fixed support seat 82111 is operated to make relative movement, the pressing head 821121 of the movable member 82112 is pushed toward the protrusion 821113 of the support housing 821112 of the fixed support seat 82111, the deformable member 8212 is pressed in the axial direction, so that the pressed portion overflows in the radial direction to reduce the cross-sectional area of the holding passage 82110, and the nephrostomy tube 810 can be held in the holding passage 82110 of the deformable member 8212. The friction between the nephrostomy tube 810 and the deformable member 8212 increases to lock the nephrostomy tube 810 to the deformable member 8212 of the fixation unit 820 in the fixed position of the nephrostomy tube 810. At the same time, the locking housing 821122 of the movable member 82112 moves along the supporting housing 821112 of the fixed support base 82111, and when the movable member 82112 or the fixed support base 82111 stops moving relatively, the movable member 82112 is automatically fixed to the fixed support base 82111.

In the above manner, the force application member 8211 of the fixing unit 820 can achieve locking of the flexible nephrostomy tube 810.

Further, the deformable member 8212 can be deformed inward uniformly by the pressing of the pressing head 821121 of the movable member 82112 and the pressing of the support housing 821112 of the fixed support base 82111 to generate a uniform pressing force around the nephrostomy tube 810 lower than that of the nephrostomy tube 810, so that the nephrostomy tube 810 is held tightly while conduction to the nephrostomy tube 810 is maintained as much as possible, and the nephrostomy tube 810 is prevented from being completely sealed at the position due to uneven application of force.

Optionally, the deformable member 8212 is implemented as a symmetrical structure, an axisymmetric structure or a centrosymmetric structure. The extrusion head 821121 of the moveable member 82112 is implemented as a symmetrical structure, an axisymmetric structure, or a centrosymmetric structure. The protrusion 821113 of the support housing 821112 of the fixed support seat 82111 is implemented as a symmetrical structure, an axisymmetric structure or a central structure. The cross-section of the holding channel 82110 formed by the deformable member 8212 is configured to be circular, and the outer cross-section of the nephrostomy tube 810 is configured to be circular.

When the fixing position of the nephrostomy tube 810 needs to be adjusted, for example, when the nephrostomy tube 810 is inserted too deeply into the current subject, the operator may move the movable member 82112 in a direction away from the fixed support seat 82111, and the force applied to the deformable member 8212 by the force application member 8211 of the fixing unit 820 is reduced, so that the deformable member 8212 can be automatically restored to the initial state by the elastic force, and the holding passage 82110 is expanded so that the nephrostomy tube 810 can be moved forward or backward. After the fixing position of the nephrostomy tube 810 is adjusted, the fixing unit 820 may be readjusted to fix the nephrostomy tube 810. In this way, the fixation unit 820 achieves a transition between the restrained state and the open state, and the nephrostomy tube 810 also achieves a transition between the restrained and movable state. Further, in this embodiment, the deformable member 8212 is a ring-like structure. In detail, the deformable member 8212 has a top surface 82121 and a bottom surface 82122, the top surface 82121 and the bottom surface 82122 are oppositely disposed and the top surface 82121 is disposed toward the pressing head 821121 of the movable member 82112, and the bottom surface 82122 is disposed toward the protrusion 821113 of the support housing 821112 of the fixed support seat 82111.

The top surface 82121 and the bottom surface 82122 are respectively provided with bulges, and the longitudinal section of the deformable element 8212 can be prismatic so as to generate more deformation under the condition of the same volume.

It is noted that the drainage channel 8103 of the nephrostomy tube 810 can be reduced to a certain extent during the process of pressing the deformable member 8212 to deform, and the reduction can be controlled, and even the drainage channel 8103 can be closed by the fixing unit 820. In other words, when the operator wishes the nephrostomy tube 810 to stop draining, the drainage channel 8103 of the nephrostomy tube 810 can also be closed by means of the fixing unit 820.

Further, in this embodiment, the deformable member 8212 is a solid, resilient member, and as the raised top surface 82121 and the raised bottom surface 82122 are compressed, the deformable member 8212 is compressed in its entirety and as it is restrained by the outer force application member 8211, the deformable member 8212 is squeezed inwardly to constrict the nephrostomy tube 810.

Alternatively, in another embodiment of the invention, the deformable member 8212 is implemented as a hollow balloon 813 filled with a gas. When the deformable member 8212 is compressed, the deformable member 8212 collapses to enlarge the cross-sectional area, thereby restraining the nephrostomy tube 810. When the squeezing force applied to the deformable member 8212 by the force application member 8211 is relieved, the deformable member 8212 is rapidly restored by gas to release the nephrostomy tube 810.

Referring to fig. 31A and 31B, the fixable nephrostomy tube apparatus according to another preferred embodiment of the present invention is illustrated.

The main difference between this embodiment and the above-described embodiments is the fixing unit 820. In the above embodiment, the fixing support 82111 of the force application member 8211 of the tube fixing part 821 of the fixing unit 820 is screwed to the movable member 82112.

In this embodiment, the movable member 82112 is detachably clamped to the supporting housing 821112 of the fixed supporting seat 82111.

In detail, the movable member 82112 includes the pressing head 821121, the locking housing 821122 and a movable channel passing through the locking housing 821122. The movable member 82112 is configured to be annular and is U-shaped in cross-section at least one location. The end of the locking shell 821122 away from the fixed support base 82111 is connected to the pressing head 821121, and the end of the locking shell 821122 close to the fixed support base 82111 is formed with a recess to engage with the protrusion 821113 of the bottom support 821111 formed on the fixed support base 82111. It will of course be appreciated that the location of the recesses and projections 821113 for snap-fitting are illustrated here by way of example and can be arranged as desired by those skilled in the art.

Referring to fig. 32A-32B, the securable nephrostomy tube device in accordance with another preferred embodiment of the present invention is illustrated.

The main difference between the present embodiment and the above embodiments is the connection manner of the tube fixing part 821 and the body fixing part 822 of the fixing unit 820. In the above embodiment, the fixing support 82111 of the force application unit 8211 through which the tube fixing part 821 passes is fixedly connected to the body fixing part 822.

In the present embodiment, the tube fixing part 821 is detachably mounted to the body fixing part 822 such that the body fixing part 822 may be used alone, or the body fixing part 822 and the tube fixing part 821 may be separately mounted.

In detail, the fixing support seat 82111 of the tube fixing part 821 includes the bottom support 821111 and the support housing 821112, in terms of the support housing 821112 extending outward from the bottom support 821111, the bottom support 821111 is adapted to be connected to the body fixing part 822, and the support housing 821112 is adapted to be connected to the movable piece 82112.

In this embodiment, the bottom support 821111 of the fixing support 82111 of the tube fixing part 821 is engaged with the body fixing part 822. The body fixing portion 822 may be protruded outwardly 821113 to form a platform for being fastened to the bottom support 821111 of the fixing support seat 82111.

Therefore, in the process of installing the fixable renal fistula tube 810, the body fixing part 822 may be first installed to a subject, then the renal fistula tube 810 is inserted through the body fixing part 822 to be installed to the subject, and finally the tube fixing part 821 is installed to the body fixing part 822 and the renal fistula tube 810 is fixed in place.

Referring to fig. 35, a fixed nephrostomy tube device with an outer receiving member 830 according to another preferred embodiment of the present invention is illustrated.

In this embodiment, the first connector 841 of the connection unit 840 is detachably screwed to the second connector 842, the first connector 841 is fixedly connected to the second connector 842 by rotating the second connector 842, and the first connector 841 and the second connector 842 are tightly connected by the thread arrangement of the two. It is noted that the first connecting member 841 of the connecting unit 840 is also the movable member 82112 of the stationary unit 820.

Referring to fig. 36, a fixed nephrostomy tube device with an outer receiving member 830 according to another preferred embodiment of the present invention is illustrated.

In the above embodiment, the connection between the fixed support 82111 of the force applying component 8211 of the tube fixing part 821 of the fixing unit 820 and the movable piece 82112 is by means of a movable fixed connection outside the fixed support 82111. According to another embodiment of the present invention, the movable member 82112 is sleeved in the holding channel 82110 of the fixed support seat 82111 and the movable fixed connection position is arranged inside the fixed support seat 82111. In detail, the inner wall of the supporting housing 821112 of the fixed support seat 82111 of the force application component 8211 of the tube fixing part 821 is formed with a screw thread, and when the movable member 82112 is inserted into the supporting housing 821112, the outer wall of the movable member 82112 is screwed to the supporting housing 821112 to achieve pressing of the deformable member 8212 during a change in the relative position of the movable member 82112 and the supporting housing 821112 of the fixed support seat 82111.

It will be appreciated by persons skilled in the art that the above embodiments are only examples, wherein features of different embodiments may be combined with each other to obtain embodiments which are easily conceivable in accordance with the disclosure of the invention, but which are not explicitly indicated in the drawings.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A securable external nephrostomy tube adapted for connection to an ostomy bag, said securable external nephrostomy tube comprising:

2. The securable external nephrostomy tube of claim 1, wherein said drainage body includes a tube and at least two guide vanes, and said drainage body further has a traction channel, wherein said fluid inlet and said drainage channel are formed in said tube, at least two of said guide vanes extending from an inner wall of said tube in spaced relation to each other between said drainage channel, said traction channel being formed between inner ends of said guide vanes, said traction channel communicating with said drainage channel, said fluid inlet being formed between adjacent said guide vanes.

3. A securable external nephrostomy tube according to claim 2, wherein the drainage body of the guide device has a traction opening, wherein the traction opening is in communication with the traction channel of the drainage body, the drainage body being switchable between a curved state in which the drainage body is rolled inwardly with the traction opening towards the inner side of the drainage body and a straightened state in which the direction of extension of the drainage body and the direction of extension of the delivery body are maintained in alignment.

4. A securable external nephrostomy tube according to claim 2, wherein said drainage body of said guide device has a traction opening, wherein said traction opening is in communication with said traction channel of said drainage body, wherein the direction of extension of said drainage portion of said drainage body of said guide device is always in line with the direction of extension of said delivery body.

5. The securable external nephrostomy tube of any one of claims 1 to 4, wherein the securement body includes a hard retention layer and a soft adhesive layer, wherein the hard retention layer has a retention surface and a retention surface opposite the retention surface, wherein the soft adhesive layer has the adhesive surface and a bonding surface opposite the adhesive surface, wherein the bonding layer of the soft adhesive layer is adhered to the retention surface of the soft adhesive layer, and wherein the hardness of the hard retention layer is greater than the hardness of the soft adhesive layer.

6. A securable external renal fistula according to claim 5, wherein the external body comprises a carrier portion and an external portion, wherein the external portion extends outwardly from the carrier portion, the carrier portion being provided to the securing body, the carrier portion having a hardness greater than the hardness of the rigid retaining layer, the external portion allowing for detachable attachment to the ostomy bag.

7. A securable external nephrostomy tube as claimed in claim 6, wherein said external portion of said external body includes an extension arm extending longitudinally outwardly from said load bearing portion and a retention portion extending laterally outwardly from said extension arm and defining a retention slot between said extension arm and said retention arm.

8. A securable extra-corporeal kidney fistula as set forth in claim 6, wherein the circumscribing portion of the outer body is provided with a screw thread to allow the ostomy bag to be threadably mounted to the circumscribing portion of the outer body.

9. A securable exo-renal fistula as set forth in claim 6, wherein the male portion of the male body includes at least two spaced apart fastening claws, wherein the fastening claws include a resilient retention member extending flexibly outwardly from the load-bearing portion, a fastening arm extending perpendicularly outwardly from the resilient retention portion, and an abutment projection extending obliquely inwardly from the fastening arm and forming a fastening slot between the resilient retention portion, the fastening arm and the abutment projection.

10. The securable external ostomy fistula of claim 5, said external securement device further comprising a retention body, and said fixed body having a holding channel, said delivery body of said guide device being allowed to be movably mounted to said holding channel, wherein the limiting main body is arranged on the fixing main body in a manner of being communicated with the fixing main body, said guide means being movably retained in said retaining channel, said check body being operatively mounted to said guide means, wherein the limiting body can be switched between an active state and a locking state, when the limiting body is in the active state, the guiding device and the fixing body can be relatively displaced, when the position limiting body is in the locking state, the relative position of the guide device and the fixing body is fixed.